All-new design for a shorter overall length. – Now available for 9mm and 45 ACP 3-lug barrels select caliber from dropdown. – Suppressor compatibility: Octane series Omega K series and Hybrid – NOTE: The 45ACP 3-lug mount is compatible with the B&T APC 45 3-lug barrel. Our mount will NOT fit on the Griffin Armament 45 caliber 3-lug barrel adapter due to the smaller size of the adapter. – Compatible with the Osprey takedown tool (included) for removal.