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Publication numberUS20090064558 A1
Publication typeApplication
Application numberUS 11/944,088
Publication date12 Mar 2009
Filing date21 Nov 2007
Priority date27 Nov 2006
Publication number11944088, 944088, US 2009/0064558 A1, US 2009/064558 A1, US 20090064558 A1, US 20090064558A1, US 2009064558 A1, US 2009064558A1, US-A1-20090064558, US-A1-2009064558, US2009/0064558A1, US2009/064558A1, US20090064558 A1, US20090064558A1, US2009064558 A1, US2009064558A1
InventorsDavid B. Woroner
Original AssigneeWoroner David B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Multiple mount, impact face, muzzle protective pistol attachment
US 20090064558 A1
Abstract
A length and width varying multiple mount, impact face, muzzle protective pistol attachment with custom trigger guard to give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user an offensive/defensive muzzle protection device in which to provide the most stable engineered platform to date for a pistol accessory mount/impact face to wit: The inventive device includes the unique attachment fastening system to the trigger guard.
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Claims(10)
1. A multiple mount, impact face, muzzle protective pistol attachment wherein said attachment embodies four mounting positions for third party attachments by utilizing an array of clamp an anchoring methods comprising;
A custom engineered trigger guard, custom extruded main body, mount with related glass breaking attachment, raised riser arms and a Picatinny 1913 mill standard rail.
2. The device of claim 1 wherein the device can easily adapt to and/or securely maintain a flashlight device.
3. The device of claim 1 wherein the device can easily adapt to and/or securely maintain an optical sighting system.
4. The device of claim 1 wherein the device can easily adapt to and/or securely maintain a taser like module.
5. The device of claim 1 wherein the device can easily adapt to and/or securely maintain a strobe sight.
6. The device of claim 1 wherein the device can easily adapt to and/or securely maintain a night vision device.
7. The device of claim 1 wherein the device can easily adapt to and/or securely maintain an infrared lighting device.
8. The device of claim 1 wherein the device can easily adapt to and/or securely maintain an oleoresin capsicum dispersant unit.
9. The device of claim 1 wherein the device will vary in length and width depending on the firearm specifications.
10. The device of claim 1 wherein the device trigger guard will vary in size and shape dependent on the firearm specifications.
Description
PRIOR APPLICATION

This application emanates from a prior Provisional patent application filed Nov. 27, 2006, Ser. No. 60/860,969.

FIELD OF THE INVENTION

The present invention relates generally to pistol attachments, pistol mounting devices/platforms for third party devices and more specifically it relates to a multiple mount, impact face, muzzle protective pistol attachment for give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user an offensive/defensive muzzle protection device. Provide a stable engineered platform for a pistol accessory mount/impact face.

BACKGROUND OF THE INVENTION

It can be appreciated that railing systems and pistol attachments have been in use for years. Typically, railing systems and pistol attachments are comprised of the inclusion of four (4) universal/picatinny rails dramatically departs from all previously known embodiments. It allows the end user to add the multitude of third party devices currently within the market place. To give a brief explanation of the possible attached third party devices gives the examiner the opportunity to see in a real world way in which this gives the end user the choices to be able to mount a Flashlight, a Laser Aiming Device, An Optical Sighting System, A Taser-like module, A Strobe Light, Infrared Lighting Devices, Night Vision Devices and Oleoresin Capsicum dispersant type units. Also, it should be noted that there are heretofore unknown devices that can be utilized as well as long as the attached third party device utilizes the industry standard, those skilled in the art specification of the Universal/Picatinny Railing System.pistol accessory mounts, pistol flashlight mounts, strike plates, scope mounts.

The main problem with conventional railing systems and pistol attachments are that they all attach in a way that is not designed to the best possible engineering design and materials that create weaknesses in the overall makeup of the product. Another problem with conventional pistol mounts/impact face/muzzle defense are none of the pistol mounts, pistol flashlight mounts, strike plates, optical top mounts employ or utilize the two different unique and new techniques in engineering the attachment techniques. Another problem with conventional pistol mounts/impact face/muzzle defense is that while there are strike plates, optical mounts, flashlight mounts, etc. None of these offer four mounting positions specifically for pistols. In addition, none of the currently offered products, systems or devices offers all of the options and unique components of this new invention. (To be referred to and subsequently named: WOR4 TacRail.)

While these devices may be suitable for the particular purpose to which they address, they are not as suitable for give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user an offensive/defensive muzzle protection device. Provide the most stable engineered platform to date for a pistol accessory mount/impact face. The main problem with conventional railing systems and pistol attachments are that they all attach in a way that is not designed to the best possible engineering standards and therefore create weaknesses in the overall makeup of the product. Another problem is none of the pistol mounts, pistol flashlight mounts, strike plates, optical top mounts employ or utilize the two different unique and new techniques in engineering the attachment techniques. Also, another problem is that while there are strike plates, optical mounts, flashlight mounts, etc. None of these offer four mounting positions specifically for pistols. In addition, none of the currently offered products, systems or devices offers all of the options and unique components of this new invention.

In these respects, the multiple mount, impact face, muzzle protective pistol attachment according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in so doing provides an apparatus primarily developed for the purpose of give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user an offensive/defensive muzzle protection device. Provide the most stable engineered platform to date for a pistol accessory mount/impact face.

SUMMARY OF THE INVENTION

In view of the foregoing disadvantages inherent in the known types of railing systems and pistol attachments now present in the prior art, the present invention provides a new multiple mount, impact face, muzzle protective pistol attachment construction wherein the same can be utilized to give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user a rugged offensive/defensive muzzle protection device. Provide the most stable engineered platform to date for a pistol accessory mount/impact face.

The Wor4 TacRail Shall in all manner, from here on out be assumed and is attachable to the pistol as will be later described as a clamping and anchoring method that is unique and unlike any other product/device or system, to include, but not limited to: A clamping method utilizing a “joint and closing clamping method that can be achieved by both fasteners of the following type. Utilizing fasteners known as screws, threads, etc. It can also be attached to the pistol by utilizing a “Cam type device” which when opened, will release the railing or when shut, will cam the rail system closed, affixed and fastened to the pistol. To continue, it should be assumed that the Wor4 TacRail can be manifest in several forms, in a single lower rail, a double rail (upper and lower) and a 4 rail version with an impact face and muzzle protection feature. The latter is what is delineated in the drawings. OEM shall mean affixing to a pistol with an original equipment manufacturer's lower railing already in place. LEGACY shall mean with no lower rail from OEM.

The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new multiple mount (4), impact face (also referred to as “strike plate”), muzzle protective (frontal glass breaker spike) pistol attachment that has many of the advantages of the railing systems and pistol attachments mentioned heretofore and many novel features that result in a new & unique multiple mount, impact face, muzzle protective pistol attachment which is not anticipated, rendered obvious, suggested, or even implied by any of the railing systems and pistol attachments, either alone or in any combination thereof.

To attain this, the present invention generally comprises the unique attachment fastening system to the trigger guard. The first part is that it utilizes a new and unique behind, or inside the trigger guard fastener (not to infringe, impinge upon U.S. Pat. No. 6,378,237 as it departs radically by utilizing a “sliding door or multi rod design” to attain the clamping trigger guard ability, and should be seen from here on out within this invention document as the intended embodiment.

With an anti-scuff material to prevent weapon finish damage, specific to weapon, weapon model specific.) and an opposing fastener to apply sturdy, strong attachment to pistol. This system will be utilized in both embodiments intended within this patent.

The difference between the “Legacy Version” and the “OEM Version” is that the legacy version will attach by a clamping, pinching, applied pressure method to the dustcover of the pistol. The oem version will utilize a similar, yet different clamping type system present in the lower railed newer oem versions of pistols. What makes this invention new and unique are two specific components, the multiple attachment points for accessories and the unique trigger guard attachment system that departs from anything presented in any embodiment to date. The attachment to the trigger guard departs substantially from any heretofore presented embodiments of similar type pistol mounts/impact face pistol accessory. It utilizes a precision fitted U shaped to wrap around the trigger guard and then a sliding, locking attachment plate fastens the invention extremely stably to the pistol in a new and unique way.

The difference in the embodiments is as follows. In a legacy pistol with no railing mount manufactured into the lower receiver, one embodiment utilizes the pinching, clamping and applied pressure method to firmly and sturdily attach to the dustcover of the legacy pistol. In the other embodiment, the original equipment manufacturer railing at the bottom of the pistol is utilized instead of the clamping, pinching and applied pressure method utilized in the legacy embodiment. The OEM railing takes the place of dustcover attachment, yet the attachment is made by utilizing an attachment method that incorporates both the standard specifications set forth within the industry and those skilled in the art would recognize as a Weaver/Universal/Picatinny rail.

A primary object of the present invention is to provide a multiple mount, impact face, muzzle protective pistol attachment that will overcome the shortcomings of the prior art devices.

An object of the present invention is to provide a multiple mount, impact face, muzzle protective pistol attachment for give the end user a multitude of choices of where to mount third party products, systems and devices. Give the end user an offensive/defensive muzzle protection device. Provide the most stable engineered platform to date for a pistol accessory mount/impact face.

Another object is to provide a multiple mount, impact face, muzzle protective pistol attachment that provides a newly designed mounting system. That includes two unique abilities, in one embodiment it attaches to non railed legacy pistols. In another embodiment it attaches to pistols that have original equipment manufacturers picatinny/universal rails.

Another object is to provide a multiple mount, impact face, muzzle protective pistol attachment that to discern the differences in attachment to the pistol to make it a better engineering design. On legacy pistols it attaches via a behind the trigger guard unique interface and on the outside of the trigger guard a fastener applies opposing pressure. Both versions attach using this unique trigger guard system. In the legacy pistol (non railed from OEM), the attachment follows by utilizing a tightening or squeezing system to attach to the dustcover of the pistol. In the OEM (original equipment manufacturer) bottom railed pistols, it is the intent to utilize slightly different, but similar, pinching system that fastens to the lower oem picatinny/universal rail.

Another object is to provide a multiple mount, impact face, muzzle protective pistol attachment that a unique impact face that protects the muzzle, thereby preventing the pistol from being “pushed out of battery”, which renders the pistol unfireable. It is intent to add a longer/stronger impact prong to be used offensively and defensively as well as being capable of breaking a window without pushing back on the slide and the pistol out of battery.

Another object is to provide a multiple mount, impact face, muzzle protective pistol attachment that it will offer four places to mount products, systems or devices. It should be noted here that no other device offers four (4) areas for mounting devices.

Another object is to provide a multiple mount, impact face, muzzle protective pistol attachment that it provides a unique pistol protection device in totality due to the numerous components.

Other objects and advantages of the present invention will become obvious to the reader and it is intended that these objects and advantages are within the scope of the present invention.

To the accomplishment of the above and related objects, this invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that changes may be made in the specific construction illustrated.

It is understood, of course, that while the forms of the invention herein shown and described include the best mode contemplated for carrying out the present invention, they are not intended to illustrate all possible forms thereof. It will also be understood that the words used are descriptive rather than limiting, and that various changes may be made without departing from the spirit or scope of the invention as claimed below.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other objects, features and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:

Fig A is the top, right side elevation depicting all of the components of the device prior to assembly.

Fig B is an illustration schematic view of the main body of the device.

Fig C is an illustration of the front, top and right side elevation of the current device in schematic format.

The illustrations and examples provided herein are for explanatory purposes and are not intended to limit the scope of the appended claims, as those skilled in the art will make modifications to the invention for particular uses.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Now referring to Figure A; (1) depicts an Allen wrench used on (12) the elbow joint tension screws. Additionally (1) is used to attach and detach the subject device to the pistol. Because all screw head holes were selected as same, it only requires this tool. Attached to the front of the device (2) is the glass breaker which mounts into (6) the front section which encircles the firearm barrel. Attaching to both sides of the front section (6) is (5) the custom machined main body or platform for all other attachments. Attaching to each side of the main body is (3) and (4) right and left side plates respectively. The top rail (7) mounts to the upper most edge of both side plates for optional accessories.

A further description of Figure A, numeral (8) identifies the trigger key as it attaches to the main body. The purpose of the trigger key is to fit inside a trigger guard. When the opposing screw (9) is tightened, it creates an anchor point by pinching or torque tensioning to the firearm. Mounted in front of the trigger key is (10) the helicoil. The opposing force tension screw (9) tightens within the helicoil.

To further describe the described illustration and related parts;

1) Allen Wrench, The Main body has an L shaped groove cut out and two industrial magnets hold it in place. It is used to attach and detach the TacRail to the pistol. Because all screw head holes were selected as same, it only requires this tool. (Note—We are developing a “camming” type tightening system that would negate the screws altogether. The “cam system” will utilize tensioning arms to achieve the same result as the current screw tightening system.
2) Glass Breaker, The “Breaker” serves several purposes. As its name implies, it will break car and structure windows. It will also “force compliance” or “render no threat” if applied properly. It can also keep an attackers hand at bay.
3) (4)—These two “Riser Arms” are designed to raise the 1913 picatinny railing above the moving slide. It also wide enough to allow the pistol safeties to pass for field stripping. The main mission of the risers is to get the railing up so that a third party device may be mounted (ie—a red dot scope)
5) The “Main Body” is specifically cast, machined and precisely fitted to each pistol. While the Tacrail is designed for mounting 3rd party devices, each pistol is different and requires a differently extruded main body. The Main Body is the center piece of the entire Tacrail system. All other components are attached to it. It is the main platform.
6) The front section allows for additional anchoring by ringing the barrel while not touching it. It also allows #2 to be attached. Finally, the front section prevents an attacker from pushing the pistol “out of battery.”
7) Top Picatinny Rail. For mounting third party devices. It conforms with the US Military's (MILSPEC) mounting railing system.
8) Trigger Key, The trigger key attaches to the main body. Its purpose is to fit inside the trigger guard. When the opposing screw is tightened, (#9), it creates an anchor point by pinching or torque tensioning to the pistol.
9) Opposing force tension screw. The Trigger guard key and the opposing force tension screw form an anchoring point to withstand the recoil or the pistol firing. The front of the trigger guard of the pistol is what is a solid part of the receiver of the pistol. Utilizing these two pieces together causes a tensioning, or vise like grip on the pistol trigger guard.
10) Helicoil. Due to the possible extreme tightening of the opposing for screw (#9), it was deemed necessary to include a stainless or other steel sleeve to protect the aluminum of the main body from being stripped.
11) Trigger Guard Screw. This screw goes through the trigger guard key and into the Main Body. This attaches the Trigger guard key to the Main Body. Its purpose is to hold solid and create a part of the overall anchoring system.
12) Elbow Joint Tension Screws. When these screws are torqued they create a pinching or tensioning point between the Tacrail and the lower receiver of the pistol.

Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, the attached figures illustrate a multiple mount, impact face, muzzle protective pistol attachment, which comprises the unique attachment fastening system to the trigger guard. The first part is that it utilizes a new and unique behind, or inside the trigger guard fastener and an opposing fastener to apply sturdy, strong attachment to pistol.

This system will be utilized in both embodiments intended within this patent. The difference between the “Legacy Version” and the “OEM Version” is that the legacy version will attach by a clamping, pinching, applied pressure method to the dustcover of the pistol;

The oem version will utilize a similar, yet different clamping type system present in the lower railed newer oem versions of pistols. What makes this invention new and unique are two specific components, the multiple attachment points for accessories and the unique trigger guard attachment system that departs from anything presented in any embodiment to date. The attachment to the trigger guard departs substantially from any heretofore presented embodiments of similar type pistol mounts/impact face pistol accessory.

It utilizes a precision fitted U shaped to wrap around the trigger guard and then a sliding, locking attachment plate fastens the invention extremely stably to the pistol in a new and unique way. The difference in the embodiments is as follows. In a legacy pistol with no railing mount manufactured into the lower receiver, one embodiment utilizes the pinching, clamping and applied pressure method to firmly and sturdily attach to the dustcover of the legacy pistol. In the other embodiment, the original equipment manufacturer railing at the bottom of the pistol is utilized instead of the clamping, pinching and applied pressure method utilized in the legacy embodiment. The OEM railing takes the place of dustcover attachment, yet the attachment is made by utilizing an attachment method that incorporates the both the standard specifications set forth within the industry and those skilled in the art would recognize as a Universal/Picatinny rail. Overall material. Impact face. Universal/Picatinny Mounts.

The attachment to the trigger guard departs substantially from any heretofore presented embodiments of similar type pistol mounts/impact face pistol accessory. It utilizes a precision fitted U shaped to wrap around the trigger guard and then a sliding, locking attachment plate fastens the invention extremely stably to the pistol in a new and unique way.

Generally a wrap around U type shaped female component of the trigger attachment is formed during manufacture of the specific model of pistol the Wor4 TacRail is designed for. The attached drawings and schematics will make this new and unique trigger guard attachment very clear in its deeply rooted engineering sciences and art that lead to this simple yet solid attachment. It is understood that different pistols have different trigger guards and different shapes and dimensions.

It will be incumbent on the inventor to create a proper fitting of the “U” attachment for each pistol model intended for manufacture. A unique feature of the “]” attachment is that a sliding, locking push to attach feature is designed to fit inside the trigger guard, while the inside forms to the inside of the trigger guard and locks into position, the outside assumes a female wrap around the trigger guard in a “]” fashion.

Opposite, or on the outside of the trigger guard is a location for a fastener to place pressure or tension against the inside sliding lock feature on the inside of trigger guard by means of opposing forces. Trap door, Sliding Latch, Double Rod Fasteners, Hinged latch.

The difference in the embodiments is as follows. In a legacy pistol with no railing mount manufactured into the lower receiver, one embodiment utilizes the pinching, clamping and applied pressure method to firmly and sturdily attach to the dustcover of the legacy pistol. In the other embodiment, the original equipment manufacturer railing at the bottom of the pistol is utilized instead of the clamping, pinching and applied pressure method utilized in the legacy embodiment. The OEM railing takes the place of dustcover attachment, yet the attachment is made by utilizing an attachment method that incorporates the both the standard specifications set forth within the industry and those skilled in the art would recognize as a Universal/Picatinny rail.

In one embodiment, specifically for legacy pistols without an existing railing system a unique pinching, compression, applied pressure mechanism is built into the invention. This allows the user to tighten by fastener the invention to the dustcover while avoiding having to drill to affix said invention. In another embodiment, specifically for (OEM) original equipment manufacturer pistols with lower receiver rails in place, the same trigger attachment would be utilized. However instead of utilizing the method for legacy pistols would be replaced by using the OEM rail as the forward attachment point, this would be accomplished by utilizing the universal/picatinny rail standard of attachment.

Specification:

The Wor4 TacRail Shall in all manner, from here on out be assumed and is attachable to the pistol as will be later described as a clamping and anchoring method that is unique and unlike any other product/device or system, to include, but not limited to: A clamping method utilizing a “joint and closing clamping method that can be achieved by both fasteners of the following type. Utilizing fasteners known as screws, threads, etc. It can also be attached to the pistol by utilizing a “Cam type device” which when opened, will release the railing or when shut, will cam the rail system closed, affixed and fastened to the pistol. To continue, it should be assumed that the Wor4 TacRail can be manifest in several forms, in a single lower rail, a double rail (upper and lower) and a 4 rail version with an impact face and muzzle protection feature. The latter is what is delineated in the drawings. OEM shall mean affixing to a pistol with an original equipment manufacturer's lower railing already in place. LEGACY shall mean with no lower rail from OEM.

Note—utilizing the multiple mounting positions and impact face and unique trigger guard attachment and the forward OEM railing in conjunction with each other departs from previously embodiments and therefore creates a new and unique invention. In legacy pistols, it is accomplished by creating a design that allows for the invention to be slid into place and tightened by use of a pinching, compression and applied pressure to the discover.

In OEM pistols, the method of attachment only varies in that instead of utilizing the applied pressure method to dustcover, it simply incorporates the existing dustcover into the attachment design. There are a multitude of design techniques that can be utilized to accomplish many of the listed attachment abilities, to include, but not limited to, compression, applied pressure, cam locking, etc.

Overall material. The only difference between the attachment of the Wor4 TacRail to a “legacy pistol” and a “OEM pistol” is that the legacy utilizes the pinching/squeezing method, while the OEM version utilizes the lower universal/weaver/picatinny rail already supplied by the gun manufacturer to attach. it should be clear to those skilled in the art of manufacturing and design that there are many ways to attach this invention to a pistol. It is the inventor's intent to make it clear that the TacRail may within the knowledge of the inventor is attached in a multitude and variety of fashions. The current embodiment was chosen as it seems the most practical, yet, any other entities should recognize that the inventor asserts that the use of the alternate methods of attachment are known, just simply not chosen for this embodiment, therefore no other method of attachment would be considered new, novel, etc.

Impact face. It has been made clear that the method of attachment include a trigger guard attaching interface and a pinching/squeezing type attachment for the “legacy pistol” and the intent to utilize the provided “OEM or original equipment manufacturers” factory supplied weaver/universal/picatinny railing in place of the squeezing or pinching method. The embodiment that is sought is for (4) four mounting locations (top, bottom and both sides). It is understood by the inventor and those skilled in the art that a three 3 three rail or two (2) railed version is possible. It is also understood that the addition of or removal of any of the (4) positioned mounting locations is a part of the embodiment of this invention. Multiple materials, from plastics to metals to other composites can be utilized to create a similar invention and is foreseen by the inventor and should be considered as part of this embodiment.

Universal/Picatinny Mounts. Part of the machining, casting to create the invention tacrail is to include a frontal pointed structure for the use of breaking windows, subduing opponents by pressing it into their body, or incapacitation by a strike to the skull. There are several methods of achieving this structure and those skilled in the art, including the inventor are aware of these additions.

The Wor4 Tacrail is generally the Main Component. It has several features. It is in this embodiment, and it should be understood that those familiar with the art would see other ways to accomplish some of the attachments to the same end. In this embodiment, the sub components are the sliding latch, referred to as fitting on the inside of the trigger guard. There are approximately three (hex or torx) type screws that are utilized to tighten/add opposing pressure, pinch or otherwise affix the TacRail to the lower receiver (dustcover or oem rail). There is a special slot cut into the invention specifically to carry the tool to attach/detach the TacRail. The entire invention is subject to extreme variations in building materials. It should be understood to all, and those skilled in the art of firearms and their accessories that all materials to construct the invention TacRail are included. To give the non initiated a sampling, it can be made from a number of plastics, metals. In this embodiment it is this inventor's intention to utilize aerospace grade aluminum.

The Wor4 TacRail operates by sliding it on muzzle (dustcover or oem rail) and onto the trigger guard and utilize the included screws and previously mentioned tool. Then, fasteners to attach the Tacrail to the Pistol. It then acts as a solid base to attach third party products, protects the muzzle and gives the user an offensive/defensive prong to thwart attackers or subdue others.

As to a further discussion of the manner of usage and operation of the present invention, the same should be apparent from the above description. Accordingly, no further discussion relating to the manner of usage and operation will be provided.

With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7712242 *27 Dec 200611 May 2010Surefire, LlcRail clamp mount
US794196018 Mar 201017 May 2011Surefire, LlcRail clamp mount
US812748431 Mar 20116 Mar 2012Surefire, LlcRail clamp mount
Classifications
U.S. Classification42/90
International ClassificationF41C27/00
Cooperative ClassificationF41G1/387, F41G11/003
European ClassificationF41G1/387, F41G11/00B4