Pre-1898 CGN frequent flyer Rating - 100% 323 0 1 Location East of Ottawa May 16, 2011 #1 Would anyone know if the muzzle tread on a SDI rifle made in UK is compatible with regular AR-15 muzzle tread (1/2 X28 )? I am looking at a SDI birdcage muzzle break but am not sure it will fit !
Would anyone know if the muzzle tread on a SDI rifle made in UK is compatible with regular AR-15 muzzle tread (1/2 X28 )? I am looking at a SDI birdcage muzzle break but am not sure it will fit !
