Stern Defense 16.1" .45 ACP Barrel 1:16 Black Melonite AR-15

The Stern Defense .45 ACP AR-15 barrel is engineered for AR-15 platforms and provides robust performance for pistol-caliber builds. Manufactured in the USA, it features high-grade materials and precise specifications for reliable operation and durability. - 4150 chrome moly steel construction - Black Melonite coating for corrosion resistance - 16.1-inch barrel length, twist 1:16, standard AR-15 diameter This barrel is designed for AR-15 builds chambered in .45 ACP and accepts standard AR-15 components. For proper function, use with an enlarged ejection port and a heavier buffer is recommended.