This BCA AR-15 Complete 350 Legend rifle length Upper has a 16″ M4 Contour barrel with a 416R stainless steel finish, and features a 1:16 Twist Rate, with a Carbine length gas system. It includes a 15″ MLOK Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, a Flash Hider, and a rear charging handle. This 350 Legend upper is compatible with any mil-spec AR-15 lower.
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