Stern Defense 001SDMAGADMP45ACPM Mag-AD 45 ACP Fits AR-15 Aluminum

Convert the standard mil-spec AR-15, M4, or M16 lower assembly to accept .45ACP M&P magazines with the Mag-AD .45ACP Adapter. In seconds, this adapter installs and enhances the AR platform, enabling compatibility with M&P .45ACP mags. Featuring a last round hold open a groundbreaking innovation for improved reliability.