5.56 (223 CAL) 1/2-28
FEATURES-For 5.56 (.22 cal.)-1/2-28 threading-Length: 2.56"-Weight: 4.1 oz.-Diameter: 1"-Titanium sleeve-Core & cap are machined from 416R stainless steel-3-piece modular design makes installation simple & fast-No shims or crush washers needed