The Agency Arms Optic System AOS Leupold Deltapoint Pro Plate sold is as a single plate in either Rear Iron Forward of the Deltapoint Pro or Rear Iron Behind the Deltapoint Pro. Precision Machined from ASTM steel and coated in Diamond Like Carbon (DLC). Includes fasteners for the adapter plate and optic. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.