LMT's patented Monolithic Rail Platform. The industry’s best free float barrel and handguard on the M4. Chambered in the following: 5.56, .300BLK, .224VAL
LMT built this series of rifles with its patented Monolithic Rail Platform, the only true monolithic rail platform, milled from a single high-grade aluminum forging. Two locking bolts on the side of the receiver lock the barrel extension in place. MRP technology engages the barrel extension for a full 360 degrees and allows the barrel to be removed in seconds while minimizing point of impact shift. One receiver can support numerous barrels of varying length, material, and caliber.
Monolithic rail platform barrels use a low profile gas block with straight gas tube; furthermore, they have a proprietary coating and are cryogenically treated for long term durability.
The LMT MARS®-L ambidextrous lower receiver features our EDM machined two-stage trigger, winter trigger guard, endplate with QD swivel point. The ambidextrous features include bolt catch and release, magazine catch, and safety selector. As with all LMT® lower receivers, the extension tube is coated with dry film lubricant.
Handguard Options: CQB Quadrail, MLOK and LM8 (Top Rail, 3, 6 and 9 o’clock rails have locating lugs and screw holes)