Arak-21 5.56x45 Nato Complete Upper Receiver - Arak-21 5.56 Nato Complete Upper Rcvr 12.5'''' Medium Bbl Blk

ARAK-21A(R) Features Components of the ARAK-21A(R) Upper Receiver: The ARAK-21A(R) is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down pin, and the pivot pin. The new ARAK-21A(R) upper receiver offers you all its features with no change to your current lower receiver and can be installed in less than one minute with no tools. Your ARAK-21A(R) upper receiver will b