AR10 16" Bolt Action Upper Receiver 308

AR10 16" Upper Receiver 308 Bolt Action AR10 16" Upper Receiver 308 Bolt Action This AR-10 308 Bolt Action Style Complete Upper has a 16" Black Nitride SOCOM barrel and features a 1:10 Twist Rate. It includes the 15" MLOK Split Rail, an M4 flat-top billet upper receiver, a Bolt Carrier Group, a Flash Hider, and a right-side bolt action style charging handle.