B5 Systems

Posts Tagged ‘M-LOK’

Bravo Company – Combat Rail Systems

Thursday, October 19th, 2017


Designed to the specification of combat end users, BCM® Combat Rail Systems are built free float, for improved accuracy, with Aluminum alloys, that are light weight but do not compromise rigidity. Mission flexible platforms, ideal for end user customization in the placement of optics and accessories such as light mounts, vertical grips, hand stops, lasers and bi-pods; BCM Combat Rail Systems are available in three interface systems:

+ KeyMod™
+ M-LOK®*
+ 1913 Picatinny Rail

Whatever your mission requires, bcm offers products ready for any American going in harm’s way.


The BCM® KeyMod Rail(KMR-Alpha) delivers a robust, ultra-light modular handguard for the AR platform, second to none on the market today.

Manufactured from Aircraft Grade Aluminum alloy, the KMR-A gives end users an extensive range of customization options, with seven KeyMod lined mounting surfaces and one with baked in MIL-STD-1913 at the 12 O’Clock position. The KMR-A features ergonomics tailored to combat end user requirements, with its reduced profiled maximized for positive control of the weapon system in the lightest possible package.


The BCM® M-LOK® Compatible* Modular Rail” (MCMR) delivers the same optimized ergonomic profile and lock up** developed for the KMR-Alpha rail system, but with an M-LOK® compatible interface. Precision Machined Aerospace 6061-T6 Aluminum Alloy, the MCMR is both rigid and light-weight, featuring mounting interfaces on seven sides in addition to the baked in MIL-STD-1913 at the 12 O’Clock position.


A MIL-STD-1913 rail, the BCM® QRF(Quad Rail Free Float) Rail System is built with Picatinny Rails running the full length of the handguard at 12, 3, 6 and 9 O’Clock. Precision machined from high-strength lightweight Aerospace 6061-T6 Aluminum Alloy, the BCM QRF features the same lock up* as and steel barrel nut insuring the rail resists movement even under extreme use.

With four QD limited rotation sling swivel slots built into the rail at 3 and 6 O’Clock, the QRF provides end users an uninterrupted mounting surface at 12 O’Clock when mated with a BCM or other Mil-Spec upper receiver, allowing for the fine tuned positioning of optics, lasers or other accessories potentially vital to mission success.


The entire BCM® Combat Rail System fleet uses our patented(US Patent 8904691) lock up system where self-locking cross bolts apply force at the 12:00 position of the handguard equally distributing force around the surface area of the rail. This insures continuous top center alignment of the rail and mitigates forwards/backwards movement of the handguard when the weapon system is fired.


All BCM® Combat Rail Systems and accessories unite state of the art manufacturing with lightweight and durable materials to ensure components that last a lifetime, performing far beyond performance requirements established nearly six decades ago. Like all BCM rifles and BCMGUNFIGHTER™ accessories, all BCM Combat Rail Systems are made in the USA.

Learn more at bravocompanymfg.com/combat_rails

* M-LOK® is a registered trademark of Magpul Industries Corp. – www.magpul.com/ip
** Bravo Company MFG, Inc. US Patent 8904691

Magpul Files Amended Complaint for Patent Infringement and Declaratory Judgment of Non-Infringement Against Gibbz Arms in Federal Court

Wednesday, March 16th, 2016

After Gibbz Arms sent letters to licensees of Magpul’s M-Lok early this month, Magpul filed an amended complaint asking for a judgment that the M-Lok design does not infringe on the Gibbens brothers’ patent for their GAMA system. To catch you up, Gibbz Arms released their patent pending GAMA system in late February along with copies letters they planned to send to brands that license other, similar weapon accessory attachment systems. The goal of these letters was to assert their patent and to persuade these firms to adopt their device, alleging that it pre-dated the other systems on the market. This was quickly followed by statements of reply from both Magpul and Gibbz Arms. Eventually, Magpul filed suit on March 4, 2016.

In a press release posted to Magpul’s website earlier today, they said this:

Magpul has drawn a firm line in the sand with this expanded lawsuit. “Magpul will take all necessary action against Gibbz Arms, including challenging its patents in Federal District Court, to ensure that adopters of the M-LOK system have complete freedom to operate without concern” said Duane Liptak, Director of Product Management and Marketing for Magpul Industries. Mr. Liptak further stressed that “Magpul will make certain that its M-LOK system can be implemented under its free license without interference from Gibbz Arms.” 

Much of the issue at hand revolves around the types of T-nuts used in the design of each attachment system. This image from the Magpul filing illustrates the two types. The Gibbz Arms design is it the left and Magpul’s to the right.


Magpul has petitioned the Court for the following relief:

That Gibbz Arms has infringed the ‘236, ‘209, and ‘210 Patents;

That Gibbz Arms has knowingly and willfully infringed the ‘236 Patent;

That Plaintiff be awarded damages for patent infringement according to proof and ordering that such damages be multiplied up to treble their amount;

Preliminarily and permanently enjoining Gibbz Arms and all others acting in concert with Gibbz Arms from making, using, selling, or offering to sell the infringing firearm accessory mounting interface or any other product that infringes the ‘236, ‘209, and ‘210 Patents without permission or license from Plaintiff;

That Gibbz Arms be ordered to deliver up to Plaintiff all products infringing the ‘236, ‘209, and ‘210 Patents within its ownership, possession, or control for destruction by Plaintiff;

That the making, using, selling, offering for sale, and/or importing of the M-LOK T-Nut, or any component of the M-LOK system, does not infringe the ’D661 Patent, directly or indirectly, literally or under the doctrine of equivalents;

That the Court declare this to be an exceptional case pursuant to 35 U.S.C. § 285, and award reasonable attorney’s fees;

That Plaintiff be awarded its costs of suit, and pre- and post-judgment interest on any money judgment; and

For such other relief as the Court deems proper.

You can read the complaint below which offers additional details on the matter including a disclosure that this has been brewing since August 215 when Gibbz initially contacted Magpul. But, it was not until patents were issued and letters of solicitation were sent to M-Lok licensees that the situation escalated.

(Click on Image to download PDF)

The GAMA / M-Lok Battle Heats Up As Magpul Files Suit Against Gibbz Arms In Federal Court

Monday, March 7th, 2016

In late February Gibbz Arms released their patent pending GAMA system along with letters to brands that license other, similar weapon accessory attachment systems to adopt theirs, alleging that it pre-dated the other systems.

This was quickly followed by statements of reply from both Magpul and Gibbz Arms.

But now, the situation has taken a different direction. According to documents obtained by SSD, Magpul has filed suit in Federal District Court in Austin, Texas against Gibbz Arms.

Specifically, Magpul claims that Gibbz Arms has violated three of their patents (8,925,236 B1; 9,239,209 B2 and 9,239,210) and they are suing for treble damages, attorney fees, delivery of all infringing items produced by Gibbz Arms to Magpul for destruction, and a permanent injunction against producing, selling or offering products that infringe upon Magpul’s patents.

(Click cover to view pdf.)

Midwest Industries Introduces M-LOK Handguard for  MR556A1 / HK416

Thursday, June 4th, 2015


-Midwest Industries new handguard for the MR556A1 or HK416 (with removal of sling loop)
-7 interface sides in M-LOK allow for accessory installation in almost any configuration necessary
-9 inches of usable handguard with a full picatinny top rail
-Handguard weighs 9.9 oz
-Retail price of $219.95 (introductory price $209.95)
-Extended length to follow


Available on www.midwestindustriesinc.com and through their dealer/ distributor network in 2-3 weeks.

Magpul Industries – New M-LOK Accessories Available

Tuesday, October 14th, 2014

Some exciting news today, as Magpul Industries announced the release of four new M-LOK Accessories. The M-LOK compatible MVG, Offset Light/Optic Mount, QD Sling Mount, and Bipod Mount all offer increased functionality to M-LOK outfitted weapons. The new M-LOK accessories are made in the USA.


The M-LOK MOE Vertical Grip is designed to attach directly to M-LOK compatible handguards and forends, without the use of an additional Picatinny rail. Made from the same high-quality polymer as other Magpul products, the M-LOK MVG features Magpul’s new TPS texture which provides positive control for the shooter. With its shorter length and rounded contours, the M-LOK MVG has been optimized for the use of the ‘thumb break method’ of shooting, although it also functions equally well as a traditional foregrip.


Available in Black and Flat Dark Earth.


Offset Light Optic Mount Aluminum
M-LOK Offset Light/Optic Mount

The M-LOK Offset Light/Optic Mount offers users an ambidextrous platform to mount lights and optics at the 11 and 1 o’clock positions on any M-LOK compatible forend or handguard. It is machined from aluminum and milspec anodized, and has beveled ends and corners to reduce snagging and sharp edges. The M-LOK Offset Light/Optic Mount is compatible with any MIL-STD-1913 Picatinny compatible lights or optics. When used with the Magpul Light Mount V-Block and Rings, lights with a diameter of .75 to 1.03 inches can be used on the mount.

Offset mount 2

Available in Black.


QD mount
M-LOK QD Sling Mount

The M-LOK QD Sling Mount provides a forward attachment point for push-button QD slings, such as the Magpul MS4 sling. Machined from aluminum and milspec anodized, and has beveled ends to reduce snagging, and features an anti-rotation design to prevent swivels from spinning.

QD mount 2

Available in Black.


Bipod Mount
M-LOK Bipod Mount

The M-LOK Bipod Mount accepts bipods with Harris-style stud mounts, allowing their attachment to M-LOK compatible forends and handguards. Machined from aluminum and milspec anodized, the Bipod Mount is low-profile, and thanks to the direct-connect properties of the M-LOK system, the bipod will sit closer to the mounting surface when compared to other adapters. Additionally, the M-LOK Bipod Mount is also compatible with other accessories that attach to traditional sling studs.

Bipod mount 2

Available in Black.


As a reminder, M-LOK, which stands for Modular Lock System, is a free licensed platform system developed by Magpul that serves as an evolution of the MOE slot system used since 2007. It functions as a method for hard mounting accessories to a negative space mounting point.

M-LOK Overview from Magpul on Vimeo.

For more information on M-LOK, visit magpul.com/mlok.