Excellent mount - Kinetic Development Group OPMOD Sidelok Optic Mount

I've owned 2 of these mounts. Both have been atop a scar 17. The key to using this mount is prepping it. The threads must be cleaned and any machining lube removed. Then apply thread locker to the rings and torque all screws to appropriate torque. Allow these to set for at least 24 hours before use and you should have a solid mount that can be removed and changed between rifles. If used on a single rifle mine have always held zero. Some scopes I move purposely between rifles depending on need or use.