SilencerCo AC5062 Gas Defeating Charging Handle (GDCH) for AR-15. Made from 7075-T6 aluminum with a black anodized finish. Features an O-ring seal to prevent gas leakage and reduce blowback. Ambidextrous oversized levers for easy charging and clearing. Manufactured in-house by SilencerCo and compatible with AR-15 platform chamberings. Mfg Part Number AC5062; UPC 816413028056.