I pickup an Aimpoint 3X mangifer in a Samson Flip To Side mount to play around with.
The Samson FTS mount has a cross bolt so you screw it onto your rail. A lever is on the left side to flip the magnifier over.
I had to swap out the Matech rear sight I was using with a KAC 300m rear sight. The Samson mount did not have enough height to clear the Matech sight.
The spring in the mount quickly pushes the magnifier out of the way. It also hold the magnifier off on the side pretty well. If you violently shake the rifle, the magnifier will move, but it stays out of the way pretty well.
After playing with this mount a bit, I don’t like it. It appears to be well made, but it isn’t right for me. Flip to side mounts like the LaRue can be used by either hand while this one has its lever on the left side. I also don’t like how it screws to the gun, I would prefer to be able to take the magnifier off quickly. For me, this mount isn’t right, but I would recommend it to someone who wants a dedicated FTS mount.