LWRC International™, LLC was founded to pursue the development of a short-stroke gas-piston operated version of the AR15/M16/M4 family of weapons. Our research and development activities have focused on eliminating the inherent shortcomings in the direct impingement operating system. These efforts have resulted in our family of M6™ short-stroke, gas-piston operated rifles and carbines, which improve on the direct impingement system by operating cleaner, quieter, and with greater accuracy - and they do so with greater reliability and longer service life.


LWRCI™ is headquartered in Cambridge, Maryland, utilizing three facilities totaling over 250,000 square feet. Our manufacturing capability includes over fifty state-of-the-art CNC machine centers, laser cutting machines, screw machines, robotic welding, and mil-spec painting. LWRCI™ is registered with Lloyd's Quality Registrar for ISO-9001 International Standards compliance for Configuration Management.

Our senior management team is a group of proven executives who collectively have more than 100 years experience in managing high performance defense companies. Our engineering team, likewise, consists of dedicated professionals who have been nationally recognized in both the firearms and defense communities for the development of LWRC International’s patented self-regulating short-stroke, gas-piston system.

Our mission at LWRCI™ is to provide absolutely reliable, consistently accurate, and extremely durable tools for the warfighter and law enforcement officer. Through innovative design, disciplined engineering, and the use of state-of-the-art manufacturing processes and materials technologies, our products are built to exceed the requirements and expectations of our end users.

At LWRCI™ we pride ourselves on a customer service program that is second to none. Over the years, our many satisfied customers have helped us build a reputation for excellence throughout the defense, commercial and international firearms arenas.

LWRCI™ has engineered a complete solution to the deficits found in the direct impingement M16/AR15/M4 family of rifles and carbines. The principal improvement comes from the incorporation of our patented self-regulating short-stroke gas-piston system. This system eliminates the venting of hot, carbon-laden gases into the receiver and bolt carrier group, thus eliminating the intensive cleaning regime of the legacy rifle. It also means the bolt carrier group and associated springs are not subjected to the searing heat of the tapped gasses, this being one of the major causes of small parts failure. This translates into carbines that are far more reliable than the legacy direct impingement carbines regardless of user maintenance.

Another benefit of our short-stroke gas-piston system is the improved handling characteristics of our weapons over the direct impingement legacy weapons. Recoil is lighter and muzzle rise is greatly reduced. Amazingly, this is accomplished in a carbine that is ergonomically identical, weighs almost the same, and retains 80% parts commonality with the legacy direct impingement carbine.

But our revolutionary short-stroke gas-piston system is only one of the improvements we’ve made in the legacy carbine. LWRCI™ rifles and carbines utilize cold hammer forged barrels made out of 41V45 steel alloy and treated with NiCorr™ surface conversion technology. Cold hammer forging takes an oversized barrel blank, and using high pressure rotary hammers, compacts the barrel blank over a mandrel. This forms perfect rifling devoid of tool marks. It also compacts the molecular structure of the metal making it denser and stronger. These barrels can take a lot more use and abuse than a standard barrel before any degradation in accuracy or loss of velocity. All LWRC models have a standard (heavy barrel) and are available in various barrel lengths. Our M6 series is now offered with a geissele fire control group giving our shooters the ultimate match grade capability with the heavy barrel and short stroke piston. NiCorr™ surface conversion has proved more lubricious, harder wearing, more heat and corrosion resistant than the hard chrome normally used in the bore. Our barrels can handle 20,000 rounds before replacement, as compared to 6,000-10,000 rounds on a standard M4.

The bolt carriers of all M6™ rifles are now coated with a proprietary nickel coating that nearly eliminates corrosion while providing greatly increased lubricity. This coating provides permanent lubrication to the moving parts. This nickel coating is similar to that being used by the US Army Research Lab and USSOCOM to extend the service life of their weapons systems.

We are constantly researching the latest technology to bring our customers the most reliable, the most durable and the best handling rifles and carbines in the world.




In one of the most recent upgrades to our rifles, Cerakote ceramic firearm coating will be available as an alternative to black anodizing. Cerakote is a type of thermal cured firearms coating. It is applied over top of our standard Type 3 hard coat anodizing and offers unparalleled abrasion and corrosion resistance. It also incorporates the benefits of Teflon® without compromising its durability. This self-lubricating characteristic of Cerakote means that the rifle can be run with less lubrication; especially useful when operating in the desert or other dusty environments. We currently offer rifles in FDE (Flat Dark Earth), OD Green (Olive Drab), PB (Patriot Brown) Cerakote in addition to standard black anodized models. All rifles that have a Cerakote coating applied will be subject to a $150 upcharge. All uppers that have a Cerakote coating applied will be subject to a $100 upcharge. All lower receivers that have a Cerakote coating applied will be subject to a $50 upcharge.