Viridian RFX45 RMR Mounting Adapter is engineered for Universal firearm platforms. Finished in black anodized, this adapter base interfaces with a Holosun K Footprint mount standard to allow mounting compatible optics. Measuring 1.50 long, 0.94 wide, and 0.20 high, it includes necessary mounting hardware for reliable attachment and secure placement. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.