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Unfortunately Bear Creek Arsenal AR-15 .450 Bushmaster 18in Nitride Heavy Barrel 1-24 Twist Mid-Length 15in MLOK Upper Receiver is not listed by OpticsPlanet.

Product Info for Bear Creek Arsenal AR-15 .450 Bushmaster 18in Nitride Heavy Barrel 1-24 Twist Mid-Length 15in MLOK Upper Receiver

This BCA AR-15 complete .450 Bushmaster rifle length upper has a 18 inch heavy barrel with a black nitride finish, and features a 1:24 twist rate, with a mid-length gas system. It includes a 15 inch MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .450 Bushmaster upper is compatible with any mil-spec AR-15 lower.Shop more .450 Bushmaster Uppers!image

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  • Bear Creek Arsenal AR-15 .450 Bushmaster 18in Nitride Heavy Barrel 1-24 Twist Mid-Length 15in MLOK Upper Receiver
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