Stern Defense SD HBC45 Muzzle Device Black 45 Cal .578-28

Stern Defense SD HBC45 Muzzle Device Black 003-SD HBC45-D1-M. Machined from 6061 aircraft grade aluminum billet and hardcoat anodized. 3.25 inches long and 1.3 inches across the widest point. Specifications for Stern Defense SD HBC45 Muzzle Device: Manufacturer: Stern Defense Gun Model: AR-15 Additional Features: Threaded .578-28 Color: Black Fabric/Material: Hard-coat Anodized Features of Stern Defense SD HBC45 Muzzle Device 6061 aircraft grade aluminum. Hard-coat anodized. Sturdy construction. Light weight construction. .45 CAL Threaded .578-28 Notes: All S.D. .40S&W barrels are threaded with .45 CAL threads (.578-28) to accept .45 CAL muzzle devices. Comes with crush washer. Package Contents: Stern Defense SD HBC45 Muzzle Device What firearm models does the manufacturer say Stern Defense SD HBC45 Muzzle Device is compatible with? The manufacturer says that Stern Defense SD HBC45 Muzzle Device is compatible with AR-15Stern Defense 003-SD HBC45-D1-M: SD HBC45 Muzzle Device Black 003-SD HBC45-D1-M Black