By exceeding military standards, the CORE15 M4 Piston Rifle, 5.56 Nato, 16in, 30Rd (100279) ensures the best fit possible and can offer a more reliable, smoother functioning, and more accurate weapon that will provide you with the peace of mind that you deserve. It features Mil-Spec Forged 7075-T6 Upper and Lower Receiver with Dry Lube Internal finish, laser engraved T-markings, M4 feed ramps and Mil-Spec Type III Class II Hard-Coat Anodized finish.
223 Remington/5.56 NATO
Barrel Length, in
Core15 Mil-Spec Forged 7075-T6 Lower Receiver, Type III Class II Hard-coat anodized finish, beveled Magwell for improved reloading speed, machined chevrons in front strap, bullet pictogram safety markings
Core15 Mil-Spec Forged 7075-T6 M-4 Upper Receiver, Type III Class II Hard-coat anodized finish, M4 feed ramps, (1913 Picatinny rail flat top) w/ dry lube internal finish and laser engraved T-markings
16" M4 Profile Stainless Steel Match Grade 1:8 Twist Barrel, 1:7 or 1:9 twist 4150 CMV
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