| LMT CQB MRP Complete Upper Receiver w/ 12.5 Inch Chrome Lined 1:10 Twist 6.8 SPC Barrel - C-6-3C0-CX-SH-X-XXX SPEC II Barrel Lewis Machine and Tool MRP™ and CQB MRP™ Complete Upper Receiver Assemblies Include: Does NOT include bolt carrier Group MRP = Monolithic Rail Platform CQB = Close Quarter Combat All NFA Rules Apply |