Warne Shotgun Rib Red Dot Reflex Mount features precision aluminum construction with a black anodized finish. Weighing 1.70 oz, this mounting solution includes required mounting hardware and attaches to shotgun rib platforms. It utilizes the integrated cross-bolt ACRO clamping rail interface, making it compatible with Aimpoint ACRO P-1/P-2/C-2, Steiner MPS, Holosun 509T (with adapter), and mini red dot sights with an ACRO interface. 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.