All MK1s feature an intermediate buffer system. In exchange for a slightly longer buffer tube, the rifle operates with a rifle spring and extended buffer, which lengthens the recoil cycle. This reduces bolt speed, smooths the recoil impulse, and improves reliability across a wider range of ammunition, conditions and when using a suppressor.

Every control on the MK1 is designed to improve efficiency and handling. From the ambidextrous safety and Liberty charging handle to the integrated QD endplate and flared magwell, the platform is designed for intuitive operation in demanding environments.

With a 2.5lb 1st-stage and 2lb 2nd-stage, the L2S trigger has a clean and precise break, along with a crisp reset. The trigger bow is a hybrid straight center section with curved upper/lower sections. The L2S helps deliver fast and accurate shots on target.

Our barrels have been proven to be some of the most precise on the market. With P3 – polygonal 3-groove technology, the MK1 is regularly capable of 1 MOA or less with match ammunition, and shows excellent performance with bonded, solid copper, and frangible ammunition as well. The P3 rifling also provides for a longer service life and is easier to clean. Available in 11.5”, 14.5”, and 16” lengths.

The MK1 features an enhanced upper receiver with a lowered forward extension and enlarged maritime bolt catch. An uninterrupted top rail allows maximum mounting flexibility for optics, lights, lasers, and other accessories, while the rail incorporates the Drive-Lock system, a dovetailed upper receiver, and two additional stainless-steel pins holding everything in place.

Perhaps the most identifiable feature of the MK1 is the laser engraved texture on the handguard. Designed to provide a gripping texture without abrading equipment, a positive and sure grip is possible in any weather condition. By also having texture built-in, rail covers are not needed to also allow maximum airflow for better heat dissipation.

With a built-in deep cable management channel, profiled rail slots, and laser etched, hexagonal texturing, the MK1 Rail is a signature feature to the MK1 rifle. Cables may be routed through the channel to prevent snagging and excessive use of zip-ties. All of the rail slots have been chamfered and relief cut to minimize damage to cables. The cable management channel runs from the front of the handguard to the rear of the upper receiver, maximizing flexibility.