Introducing the Saddle Mount for Steiner MPS & Aimpoint ACRO Optics for the Beretta 1301 & A300 line of shotguns. Machined from billet 7075-T6 Aluminum and finished with Milspec Type III Hard Coat Anodize, the Saddle is the lowest possible mounting solution for miniature red dot optics utilizing the Aimpoint ACRO footprint, allowing the user to co-witness the factory Beretta iron sights.