Caliber .223 REM/5.56 NATO to .300 RUM - Accessories Bravo & ASR - Weight 7.3 oz with Single Port Anchor Brake - Length 6.16 with Single Port Anchor Brake - Diameter 1.73 - Materials Grade 5 Titanium & Grade 9 Titanium - Features - Extremely lightweight and short for minimal impact on host weapon. - Features a new single-port anchor brake to reduce recoil and maintain minimum length. - Rated all the way up to .300 RUM with impressive sound suppression. - No barrel restrictions. - Bolt-gun and semi-auto rated- not rated for full-auto fire. - Type 2 Anodized with an oil rubbed finish. - Ships with a new radial tool a Bravo tool a basic tool a 5/8 x 24 titanium direct thread mount and a .30 cal Single-Port Anchor Brake.