Designed in the M16 styling and made from strong mil-spec steel boasting black manganese phosphate finishing, this 18 button rifled FN America barrel is an ideal solution for any rifle length AR-15 rifle. Chambered in .223 Rem / 5.56x45mm, the chrome lined chamber with its feed ramp will provide more consistent and reliable feeding while shooting. This barrel also features a 1/2 x 28 threaded muzzle and a 1:7 RH twist rate.
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