Land Warfare Resources Corporation

LWRC, formerly known as Leitner-Wise Rifle Company, Inc., now Land Warfare Resources Corporation, Int'l, is a CAGE defense contractor and firearms manufacturer, founded in 1999, and based in Cambridge, Maryland. From 1999 to January 2006, the company was primarily engaged in research and development. In January 2006, the company was purchased in a management buyout by U.S. Army veteran Pat Bryan. After the reorganization the company moved into full-fledged firearms manufacturing. Along with the management buyout, LWRC absorbed Grenadier Precision Ltd. Company of Texas.

The company produces several weapons based on the M4 carbine, which use a proprietary short-stroke self-regulating gas piston system and bolt carrier design. This system prevents trapped gases from contacting the bolt carrier or receiver of the weapon, which reduces the heating and carbon fouling of the internals; simplifies field maintenance, and improves reliability.

Three segments of the Discovery Channel show Future Weapons were filmed featuring LWRC's weapons. Weapons featured were the M6A2, M6A4, and the Sniper/Assaulter Battle Rifle (LWRC SABRE).

A segment on the Science Channel show Factory Made showed how the new 7.62mmx51mm weapon is made and tested. The LWRCI logo can be seen etched in to the bolt along with the cailber size etched in to the left side of the lower receiver.