Angstadt Arms AR-15 1045 Lower Receiver for GLOCK

    Last round bolt hold open on an empty magazine (LRBHO)    Flared magwell for faster reloads    Accepts 45 ACP GLOCK® magazines    Integrated, oversized trigger guard    Machined from 7075-T6 billet aluminum with a matte black hard-coat anodized finish    Requires upper receiver with an oversized ejection port for proper ejection    Threaded bolt catch screw    For use with a 45 ACP bolt carrier assembly and a standard AR-15 hammer    Lower weight: 10.8 oz    Patent pending    Accepts all aftermarket Glock® 45 ACP double stack magazinesFFL Required Before Shipping.