GrovTec muzzle thread protectors prevent damage to muzzle threads when a muzzle brake, compensator, suppressor or other muzzle device is not in use. The thread protector is precision machined from quality steel and has a durable black oxide finish. The outer surface is knurled for easy installation and removal. Keep one on hand for each of your threaded barrels.
Specifications and Features
Threads metric 17x1