Shaw Titanium Muzzle Brake .223,1/2x28 Threads, Gray, ACMDSHAWTI556

6 ounces. 2 large side ports and 4 smaller top vents virtually eliminate muzzle rise and significantly reduce felt recoil. Bottom is sealed for reduced dust signature when shooting in the prone position. Available threaded 1/2x28 for .223 cal and 5/8x24 for .308 cal.