This new AR15 by BCA in 300 blackout comes with one Magpul Gen 3  30 round magazine, 16" Parkerized Heavy barrel w/1 in 10" twist, pistol-length gas system, 15" MLOK rails , top optics rail, and patented right side charging. Limited Lifetime warranty from BCA and $55.00 insured shipping to the continental U.S. with no card fees added at Deals on Guns. BCA website;BC-15 | .300 Blackout Right Side Charging Rifle | 16" Parkerized Heavy Barrel | 1:8 Twist | Carbine Length Gas System | 15" MLOK | Forged Lower