Griffin Armament 3-Lug Barrel Adapter 45 Cal .578x28 17-4 Stainless Steel - Black Melonite QPQ

The Griffin Armament 3-Lug Barrel Adapter in 45 caliber threads onto a host pistol barrel with a .578x28 thread pitch and adds the industry-standard HK-pattern 3-lug interface to the muzzle end. That interface accepts any compatible 3-lug suppressor or blast device, giving you rapid attachment and removal with a secure, positively indexed lockup and no tools required.

This .45 3-Lug adapter is purpose-built to mate with the Griffin .45 3-Lug Interface Assembly on Griffin .45 caliber suppressors, ensuring correct indexing and timing for the larger .45 lug pattern. The adapter is machined from 17-4 PH stainless steel and finished with a Black Melonite QPQ surface treatment for high hardness and corrosion resistance under repeated mount and dismount cycles. As the barrel-side half of Griffin's modular .45 suppressor mounting system, it lets shooters run 3-lug-equipped cans on their .45-caliber pistol host.