Built to exceed the abuse of combat - the increased rigidity enables your rifle, optics, and other aiming devices to maintain zero after extreme abuse. The patented LMT Monolithic Rail Platform (MRP) upper receiver is the only AR-15 upper that incorporates the handguard and receiver as one component.

Shop our wide selection of Lewis Machine & Tool upper receivers. LMT 10.5 upper, LMT mpr upper, mlc upper & more.

Built to exceed the abuse of combat - the increased rigidity enables your rifle, optics, and other aiming devices to maintain zero after extreme abuse. The patented LMT Monolithic Rail Platform (MRP) upper receiver is the only AR-15 upper that incorporates the handguard and receiver as one component.

The patented LMT Monolithic Rail Platform (MRP) upper receiver is the only AR-15 upper that incorporates the handguard and receiver as one component. This state-of-the-art design is CNC machined from a single piece of forged aerospace aluminum resulting in benefits and functionality unmatched in the industry.

The patented LMT monolithic rail platform 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.

Standard flat-top upper receiver with 14.5″ chrome lined 1:7″ twist 5.56 barrel. Meeting today’s military specifications, the L7D1 is a common equivalent to the upper delivered on the US M4A1 5.56 carbine. The upper receiver itself features mil-spec picatinny rail slots and M4 feed ramps designed to aid in reliable feeding during full ...

The patented 13.25″ LMT monolithic rail platform 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 …

The MRP-L MLOK 9.25 is the carbine length receiver designed for 10.5″ barrels up to 18″ barrels with M-LOK compatible attachment points on all 8 sides. This receiver sports 4 QD sling swivel attachment locations. Barrel not included.

The patented LMT Monolithic Rail Platform, MRP™ 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 …

The patented LMT Monolithic Rail Platform, MRP™ upper receiver. This is a complete upper receiver group with Specwar receiver, 12.5″ Midlength barrel, M16 full-auto BCG and ambidextrous charging handle. The receiver and handguard are made from a single piece of aerospace grade aluminum.