FSI AR .308 5/8" Crush Washer, Stainless Steel. Made in China.
- Industrial Grade Stainless Steel
- Heat Treated
- Solid Machined Construction
- Stainless Steel Finish
- AISI Steel
- Precise Machining
- AR 308 Crush Washer
Stainless Steel, solid precision machined construction. The AR 308 crush washer allows you to install your muzzle device onto your threaded barrel. This crush washer is essential when installing a muzzle brake/supressor/compensator onto your threaded barrel in order to lock the correct installation position in place.