Mega Arms - Mid Length Monolithic Upper Receiver - Quad Rail
Billet AR15/M4 Mid Length Monolithic Rail Upper Receiver.
• See MTS gas piston system in our catalog for the correct Adams Arms MTS gas piston system.
• Comes with dust cover and forward assist installed.
• Quad-rail system for accessory mounting.
• True billet monolithic design, but light-weight.
• Redesigned dust cover hinge pin for a quality appearance.
• Reinforced mounting hole for fixed Bipod stud (Bipod stud included).
• 7075-T6 aircraft grade aluminum alloy.
• Based off our billet upper design, compatible with any mil-spec lower and matches perfectly with our billet lower.
• Redesigned barrel nut and thread allows use of any stock barrel.
• Barrel nut and wrench included.
• WARNING: The standard Adams Arms gas piston system is not compatible with the MTS uppers.