SilencerCo 1/2 x 28 Thread Protector w/ O-Ring AC6
SilencerCo 1/2 x 28 Thread Protector w/ O-Ring AC6, Made from stainless steel and finished in black oxide, this thread protector can be a replacement to an already purchased adapter. Also, if a gunsmith threads a barrel with Silencerco's unique O-ring engagement feature, this thread protector is perfect.