Working great so far in a clip-on thermal - Primary Arms SLx Flip-To-Side Magnifier Mounts

This review is for the non-push button model "Primary Arms SLx Flip-To-Side Magnifier Mount, 2 Bolt Interface, Black, 910094". I recently purchased a DNT Optics Hydra 635 clip-on thermal for use on a rifle and really wanted to be able to simply flip the scope to the side (as opposed to having to remove the thermal optic every time I need to check/change a setting or switch to normal vision on one of my higher mag scopes. Problem is that DNT does not offer a flip-to side mount for that line of thermal optics so I decided to try this PA mount for kicks! There is one caveat - while the mounting holes line up perfectly with the Hydra 635, the notch in the mount is around 9.5mm wide and the hydra's mounting point is tapered from the thermal optic's body to the base of its mounting channel (from around 8.8mm to about 7.5mm?) so it does not snuggly slip into place when mounted without screws (like the DNT mounts do) but fortunately, using the supplied mounting screws, both parts will line themselves up as the screws tighten up. With a little patience while evenly tightening up the screws, the mount lines up nicely, making this setup perfect! This mount comes with spacers for different mounting heights but with my Seekins HIT mounts, it is perfect without them at 1.5"! Now I can flip my optic out of the way when not needed! When you first receive it, you will have to open it in order to mount it so either wear gloves to protect your fingers against pinching on the joint or just be careful. I drew blood pinching a finger in that hinge joint. Under the load of mounting an optic on to the pic rail, that resistance is perfect and stable in both positions. This little project worked out perfectly for my needs.