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Why will the 1/2"-28 not work on 9mm? Is it due to inner diameter? My 9mm barrel has 1/2"-28 thread. — 1 Answer
by
Sam,
from WV, United States Asked on June 30, 2018
Answered by
Mark H.,
Gear Expert,
from IL, United States,
on August 01, 2018
Pushing a 9mm projectile through a .223/5.56 hole at high velocity is not recommended.
Your 9mm barrel should be threaded for 1/2 x 36, all of Guntec USA's 9mm muzzle devices are 1/2x36:
https://www.guntecusa.com/AR-9MM/muzzle-devices-2139613706
I would recommend contacting the manufacturer of your barrel for confirmation.
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