Optics mount for fixed ar-15 carry handle - Precision Reflex PRI M16/AR15 Carry Handle Mount

I have aging eyes and, much to my dismay, cannot focus on iron sights well enough to be able to shoot like I used to. So, my next best option was to mount an optic to my match AR-15. I bought this mount to affix a red dot sight. I am a little leary of this type of mounting system, as I have tried an optic mount on an M1A, to find it did not provide a solid lock up for the optic. As far as I can currently tell, this AR-15 mount should be very solid. I can feel no discernible movement in the mount when grabbed and torqued by hand. My group center does not shift as it has with my M1A. I am, so far, very pleased with this mounting system and would recommend it to anyone who needs to mount an optic to a fixed carry handle AR type rifle or carbine.