This BCA AR-10 complete 8.6 Blackout rifle length upper has a 16″ parkerized SOCOM barrel, and features a 1:3 twist rate, with a carbine length gas system. It includes a 15″ MLOK split rail, an M4 flat-top forged upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a rear charging handle. This 8.6 Blackout upper is compatible with 1st gen DPMS low profile lowers.
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