Discussion in 'NFA Firearms and Accessories' started by Superpsy, Mar 1, 2014.
I figured the brain trust here could help me out. Am I missing something?
The AR threads are the same pitch as the .22 "standard" 1/2 x 28.
However, the length of the threads on the AR generally are .600 long where the .22 threads are .400 long.
Generally, you would use a spacer to take up that .20 Inches so you don't end up pushing the muzzle up against the blast baffle, causing erosion, or sometimes damage to the baffle with the muzzle running into them inside the can.
I didn't think about the thread length though. I'll have to get one of those adapters for the AR.
Separate names with a comma.