negative1x
02-15-2001, 10:05 AM
I have one of the Progressive Kits in 5.45. I want to make my own Muzzle brake. I've measured the thread pitch on the Gas Block/ front sight base at 1.5 MM. However the diameter seems to be 23MM. This does not reference on my chart of standard taps. Does anyone out there know for sure what this thread is? Thanks
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