Made extra thick from MTM quality plastic. Vice-ready to keep AR-15 rifles secure for safe, cleaning, assembly, and repair. Fits AR-15 and 308 AR DMPS and SR25-sized mag-wells. Proudly made in the U.S.A. Features: 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 accessibility Engineered and manufactured in America