| LMT CQB MRP Upper Receiver with 10.5 Inch Chrome Lined 1:7 Twist 5.56 mm Barrel - C-5-0C7-XX-XX-X-XXX Lewis Machine & Tool MRP™ and CQB MRP™ Upper Receiver Assemblies Include: All NFA Rules Apply Does NOT include Bolt Carrier Group MRP = Monolithic Rail Platform CQB = Close Quarter Combat |
