some fitment may be required (not much)
got this block to control / reduce the BCG movement and it most closely resembled the gas block that was removed from a Remington R25 . easily slipped on to the barrel . however installing the rollpin to hold the gas tube was a different mater , as the hole did not perfectly lineup with the hole in the gas tube . was it the tube ,was it the block? I dont know . what I know is a even smaller pin punch would not go trough to the other side of the block. I am also concerned that I may have to modify to reduce even more gas flow ,perhaps a larger screw to block off more gas flow. I would recommend to a friend if they were as clever as my self.

