Won't stay in alignment - LaserMax Laser Sights for Government 1911 (5" barrel) Gun

When it works, it's beautiful. But I'm about to send back my THIRD one of these, because after only 10 shots, something comes apart inside in the optics. Went from a pinpoint of light visible at 20 yards to a smear of red light, visible only to about 2 feet. Won't hold up to the recoil of my .45, with standard ammo.
Pros: Easily visible
Cons: Won't stay in alignment

This review was written in the old system and had content requirements that are different than reviews written today.