This new AR15 by BCA is chambered in 45 acp (AR45) and comes with one 13 round Glock 21 magazine, 7.5" Parkerized barrel, 6.5" MLOK and top optic rail, patented side charge and limited lifetime warranty from BCA. Insured shipping is $45.00 to the continental U.S. where allowed and no card fees added at Deals on Guns. BCA website; BC-45 | .45 ACP Right Side Charging Pistol | 7.5" Parkerized M4 Barrel | 1:16 Twist | Blowback | 6.5" MLOK |