"The SilencerCo 3-Lug 9mm Muzzle Device is compatible with all 3-lug mounting systems to provide a host for suppressors equipped with a quick-detach 3-lug mount. The 3-Lug Muzzle Device attaches via 1/2""-28 threads. Compatible with the following SilencerCo suppressors: Octane Series, Omega K Series, Hybrid 46 with Bravo Piston Mount, Hybrid 46M with Charlie Piston Mount, and Omega 36M with Charlie Piston Mount.Manufacturer's style #: AC2604. For 9mm firearms with 1/2""-28 threads Compatible with 3-lug mounting systems Compatible with SilencerCo Octane, Omega K, Hybrid 46, Hybrid 46M, and Omega 36M"