This Stern Defense barrel is designed for builders who want to add a dedicated .45 ACP option to their AR-15 platform. Made in the USA, the barrel measures 10.5 inches in length and uses robust materials and a Melonite finish for enhanced durability. With tight manufacturing tolerances, it offers reliable performance for AR pistol-caliber conversions.
10.5-inch length for AR-15 .45 ACP builds
4150 chrome moly steel with Melonite coating
1:16 twist rate threaded .578-28 for .45 ACP
This barrel is a quality choice for those upgrading or assembling a .45 ACP AR-15 upper, ensuring compatibility and trusted function from Stern Defense.