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This fully mil-spec compliant receiver provides a high-quality upper for any level
budget or shooter. Comes complete and assembled with Upper Receiver, Forward
Assist, Ejection Port Door, Barrel Nut. 16" M4 Profile Barrel and A2 Flash Hider.
Used to remove/install ar-15/m16 barrels, free float tubes & barerel nut
car stock w/3 point castle nut/locking ring
a1/a2 flash hider slot receiver extensions
1/2 square opening for torque bar
one point collapsible stock lockig nut
made of 4140 powder coated steel
Evolution Rail Designed Exclusively For Rainier Arms
Tube Material 6010 T6
Bushing Material 303 Stainless Mil-spec Hard coat Anodized
Weight: 11.0oz w/Heatsink
Length: 12.37"
Rails Included: QD Swivel Socket, 2 Inch Rail, 4 Inch Rail
Standard AR-15 barrel nut required; not included.