Colt 14.5" AR15/M4 SOCOM Stripped Barrel - Black MSRP: $257.99 Stripped 14.5” SOCOM, carbine-length (.750 GB) gas system barrel from Colt. The Colt M4 Heavy Barrel features a true 5.56x45mm NATO Chamber for use with both commercial and military... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: MSRP: $257.99 Subtotal: Add to Cart