Stoeger M3000/M3500 red dot mounts for the Vortex Venom. CNC machined in Idaho from billet 6061-t6 aluminum.
The 1/8” optic mount spacer fits between the receiver and the stock shim. Slight trimming of the shim location nubs may be needed to fit flat against the spacer. after installing the spacer, reinstall and tighten the butt stock. The optic base attached to the spacer with a single screw that will be hidden under the optic (M4x8mm). The base will draw down to the stock and receiver. A gap will be under the base and the size will depend on which angle shim is installed. Disassemble in reverse order to reduce potential damage to the spacer.
Attach the optic To the base with two M3x8mm socket cap screws. After assembly to endure proper fit, It is recommended to disassemble and apply Blue loc-tite on the screws for final assembly.