I only mounted to rifle. It’s a new universal mount hk parts just released. Included is the plate for shield footprint. 22LR – Universal Optic Mount – Black. Our latest and greatest MP5.22 optic mount that is a true universal mount. Using the same VP9 optic ready format and optic plates you can now mount any optic mount that is compatible with any VP9 style optic plate. This is highly convinient for those that have multiple style optics like Aimpoint, Trijicon, Burris, Leupold, Holosun and many more. Our mount is the perfect height to co-witness and the best solution for a quick red dot indicator with the ability to still be able to use the front sight post if the optic fails. This is lowest optic mount on the market. With our 3 piece optic mount, it makes installation a breeze. No need to damage your receiver by prying the mount off. CNC machined from 6061 aluminum and cerakoted for the best finish possible. Installs in a couple of minutes with the supplied hardware for a fast and easy installation. Torque Spec 2 Nm (or 17.7 in-lbs).