The B5 Systems Bravo trigger guard offers a drop in upgrade over the standard AR trigger guard. The enlarged profile allows for glove use in cold weather or tactical operation. The trigger guard also maintains the original swing down function for use with heavier winter gloves.6061 AluminumMil-Spec Type III Anodized FinishCompatible with All MIL-SPEC AR ReceiversWeight: 3.0 ozLength: 2.1 inWidth: .65 inHeight: .53 in