Stern Def. Barrel .45acp 6" - .578-28" 1:16 Melonite Ar-15

The Stern Defense Barrel in .45 ACP with a 6" length and .578-28" threading is designed for AR-15 platforms chambered in .45 ACP, providing the versatility of a rifle while utilizing a full-size handgun cartridge. This barrel is ideal for operators and civilian shooters who require the unique ballistics of .45 ACP in a compact format, making it suitable for close-quarters applications and home defense.

Manufactured with a Melonite finish, this barrel undergoes a deep-case hardening treatment that enhances corrosion resistance and extends service life, even under high-round-count conditions. The .578-28" threading is compatible with standard muzzle devices, allowing for easy integration of suppressors, compensators, or flash hiders without modification.

Weighing just 0.82 lbs, the barrel maintains a low reciprocating mass, which can help reduce bolt carrier velocity spikes and improve reliability with various ammunition types. This Stern Defense barrel is perfect for AR-15 builders looking to run dedicated .45 ACP uppers or convert existing platforms to this caliber.