The Geissele Automatics Super Precision ACRO P2 Lower 1/3 Co-Witness Mount is engineered to provide an exceptionally rugged attachment point for the Aimpoint ACRO P2 and similarly patterned red dot optics. Precision machined from a single piece of 7075-T6 high-strength billet aluminum, this mount completely eliminates the structural alignment issues inherent to multi-piece adapter systems. It utilizes an updated variation of the classic nut and bolt mechanism, securely anchoring your red dot to a standard Picatinny rail with an outstanding 1,400 pounds of clamping force. For absolute maximum rigidity and a guaranteed return to zero under heavy recoil, the interface is integrated with three dedicated shear lugs. The lower 1/3 co-witness height positions the optic perfectly for fast target acquisition while keeping your backup iron sights clearly visible in the lower third of the glass during a malfunction. Geissele Automatics Super Precision ACRO P2 Lower 1/3 Co-Witness Black Mount 05-2190B