Made extra thick from MTM quality plastic. Vise-ready to keepAR-15 rifles are secure for safe, cleaning, assembly, and repair. FitsAR-15 and 308 AR DMPS and SR25-sized mag-wells. Proudlymade in the U.S.A. Fits AR-15 and 308 AR DMPS and SR25 sized mag-wells AR link included for easy cleaning Holds firmly and securely Angled mag-well block for easier accessibilityEngineered and manufactured in America