Build Better With Brownells & Save 15% On $250+ Parts Order w/ Code: BUILDBETTER

Build Better With Brownells & Save 15% On $250+ Parts Order w/ Code: BUILDBETTER

Brownells Blueprint Build: LMT MARS

11 days ago

See This Build Come To Life

The LMT MARS-H .308 Battle Rifle Build is an exciting project focused on creating a compact yet powerful firearm by utilizing a short 13.5-inch barrel. Unlike traditional .308 battle rifles with longer barrels, this setup prioritizes maneuverability while still delivering the formidable stopping power of the .308 round. The LMT MARS-H stands out due to its monolithic upper receiver system, which integrates the handguard and upper into a single piece, allowing for effortless barrel swaps without the need for a barrel nut. This unique design enhances rigidity and durability, making it an excellent choice for rugged use. The build process begins with assembling the lower receiver, incorporating an LMT MARS-H lower, a Geissele trigger for a crisp pull, and pre-installed ambidextrous components for enhanced versatility. After securing the selector lever and grip, the buffer system is installed, featuring a Forward Controls Design castle nut, a QD end plate for sling attachment, and an H3 carbine buffer to ensure smooth cycling.

Moving on to the upper receiver, the LMT monolithic system eliminates the need for a traditional barrel nut, instead using a steel locking plate and Torx screws to secure the barrel in place. A Forward Controls Design 308 KeyMo muzzle device is added to optimize suppressor compatibility and recoil control. The final build results in a battle rifle that balances compactness with firepower, featuring easy barrel-swapping capabilities, reliable cycling with an H3 buffer, and fully ambidextrous controls for adaptability in various shooting conditions. The LMT MARS-H proves to be a highly modular and robust platform, making it an excellent choice for those seeking a versatile battle rifle. Would you consider running a short-barreled .308 setup? Let us know your thoughts, and be sure to check out Brownells for parts and accessories to build your own!