Gas Block Dimple Jig

This is a gas block dimpling jig for different hole patterns of gas blocks. It supports .3, .4,.45,.46,.47, and .5. Take a M4 or 5/32 machine screw and cone the end on a grinder and screw it into the gas port on the barrel and the opposite side will be your desired hole pattern for your dimple. Take a 5/32 drill bit and dimple away.