This protector are designed to fit standard a standard .578-28 male threads. Install each time your silencer is not in use to protect your barrel threads.
Material: High-Quality Carbon Steel (Black)
For MORE Material Options:
Stainless Steel-Black: N/A
Stainless Steel-Black: TP-45-578-S
Please contact the manufacture of your firearm or review your firearms manual to identify your barrel threads.
