Mrp-L M-Lok 5.56mm Assembled Upper Receiver - Mrp-L M-Lok 5.56/300 Blk 9.25'''' Assembled Upper Receiver

MRP-L M-LOK 5.56MM ASSEMBLED UPPER RECEIVER The patented LMT Monolithic Rail Platform, MRP(TM) upper receiver. The receiver and handguard are made from a single piece of forged aerospace aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver. The only tool needed is a standard T-30 Torx bit to tighten the bolts. This receiver requires the patented LMT monolithic barrel assembly which has a low profil