This new BCA AR10 in 243 winchester comes with one 25 round magazine, 20" heavy barrel, 15" MLOK and optic ready top rail. Insured shipping is $55.00 to the continental U.S. where allowed and no card fees added at Deals on Guns. BCA website; BC-10 | .243 Winchester Forged Upper | 20" Black Nitride Heavy Barrel | 1:8 Twist | Rifle Length Gas System | 15" MLOK Split Rail This BCA AR 10 complete 1st Gen DPMS low profile lower receiver is fully machined, anodized, and cut from 7075 aerospace aluminum. Equipped with an A2 pistol grip, H1 (3.8 oz) buffer, mag release, mil-spec trigger, bolt catch, and hammer, this complete AR-10 lower assembly comes fully ready to attach to your AR-10 upper. This multi-caliber AR-10 lower can shoot any AR10 caliber including .308, .243, .22-250, and 6.5 Creedmoor! AR-10 complete lowers are serialized items that will ship to your chosen FFL. Bear Creek Arsenal manufactures all AR-10 rifles, complete upper assemblies, barrels, bolt carrier groups (bcg), and components in-house here in Sanford, NC. A great price, built for high performance and backed by a lifetime warranty! Brand: Bear Creek Arsenal Caliber / Gauge: Multi-Caliber Finish: Hardcoat Anodized - Black Material: 7075 - T6 Aluminum Style: Forged Pattern: AR-10 1st Gen DPMS low profile Pistol Grip: A2 Ambidextrous: No Buffer Tube: H1 buffer (3.8 oz) Stock: M4 Assembly: Complete Lower Caliber Marking: Multi-Caliber