10.5 In Barrel 45ACP Carbon Fiber 1-16 Twist

Futuristic Looks, Low Weight AND Old-Fashioned Accuracy

BSF Barrels makes packing a "Forty-Five" a whole lot different from what it was for our parents and grandparents! Their .45 ACP AR-15 barrels are built with the same meticulous attention to detail as a top-quality match barrel to ensure that you’ll achieve the best possible accuracy from your AR pistol or carbine. All BSF barrels are turned from 416R stainless steel, then given a roll-wrapped, tensioned, carbon fiber sleeve. The sleeve keeps weight down while providing excellent rigidity, coupled with enhanced cooling.

BSF uses this sleeve method on their .45 ACP AR-15 barrels rather than simple carbon fiber wrapping because they believe wrapping traps heat and is prone to delamination. Further, BSF uses a special carbon fiber that expands at the same rate as 416R, and holes drilled into the jacket allow air to circulate around the barrel and vent heat quickly. Less heat distortion means far less risk of accuracy fade as your .45 ACP chambered AR-15’s barrel heats up.

• 5R button-rifled
• 1-16" twist rate
• .578"-28 tpi muzzle threads
• .875" O.D.
• Barrel extension included
• Available lengths include mil-spec carbine (14.5" - permanently attached muzzle device required for civilian use) and "civilian" 16.5" carbine

Each .45 ACP AR-15 barrel is thoroughly inspected by an experienced technician before leaving the BSR shop, to ensure the barrel you receive is as accurate as it is good looking!