LMT built this rifle 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. The MLC upper receiver has a 14.5-inch Picatinny top rail. The remaining 7 sides provide M-LOK compatible attachment points. 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. Finally, the lower receiver features a textured grip, M4 style stock, and dry film lubricant coated extension tube. This weapon system comes with a magazine and owner’s manual.