HUXWRX ELR Muzzle Brake 338 M18x1.5 Titanium Black 1604. This muzzle device is NOT compatible with other HX-QD suppressors. Specifications for HUXWRX ELR Muzzle Brake: Manufacturer: HUXWRX Color: Black Caliber: .338 Caliber Cartridge: .338 Winchester...