HM Defense Defender M5 .223 Rem/5.56 Semi-Automatic AR-15 Rifle - HM15F-MB-556

Features:Barrel - the Defender M5 featured HM MONOBLOC barrel with an integrally machined gas blockChambered in 5.56 NATO/223 Rem, the 4150 chromoly barrel is 16 inches in length, featured a 1:8 twist ratio and a mid-length gas systemAll HM Defense barrels are match grade, tripled honed and button rifled for superior accuracyRail - the custom HM Defense 12 inches free float 1913 Picatinny rail is CNC machined from 6061 T6 aircraft grade aluminumThe rail is compatible with receiver with type III Class II hardcoat black anodized finishlower receiver - the defender M5 featured a Mil-Spec forged 7075 T6 M4 lower receiver with type III class II hard-coat black anodized finishUpper receive - Defender M5 featured a Mil-Spec forged 7075 T6 M4 upper receiver with type III class II hard-coat black anodized finish, M4 feed ramps, and a 1913 Picatinny rail flat topComponents - HM defense rifles include an M16 bolt carrier group and Mil-Spec components, including the trigger and fire control group, charging handle and buffer tube/springCustom trigger guard, Monobloc dust cover, CNC machined muzzle brakeEnd plate - HM defense rifles feature a custom quick disconnect (QD) end plateFurniture - rifle features a black Mil-Spec HM stock and Magpul MOE gripMagazine - 30 round magazine is include with each rifle