Lewis Machine & Tool (LMT) MARS-L 5.56 NATO Piston Rifle - 16"

This weapon is built with the LMTA(R) patented Monolithic Rail Platform, MRPA(R). The only true monolithic rail platform, milled from a single solid piece of aerospace aluminum forging. It utilizes two locking bolts accessible from the side of the receiver to lock in the barrel extension. This patented technology engages the barrel extension for a full 360 degrees around the extension and makes the barrel removable within seconds with a return to zero of the same barrel. One receiver can utilize numerous barrels of varying length, material, and caliber. The MLC upper receiver has 14.5 of uninterrupted 1913 picatinny rail on the 12 o'clock position. The remaining 7 sides provide M-LOK compatible attachment points. Monolithic rail platform piston barrels utilize a standard/suppressed option gas block with removable piston rod and spring. They possess proprietary coating and are cryogenically treated for long term durability. The MARSA(R)-L ambidextrous lower receiver features our EDM machined tw