I bought this sight for my Molot Vepr 12 semi-auto shotgun.
When I mounted the sight and turned it on to do a function test, I bumped my shotgun and noticed that the sight had turned itself off.
I re-installed the batteries and checked the on-off button to see if it was sticking.
I then turned the sight back on and purposefully bumped my shotgun on its side.
Unfortunately the sight turned itself off again.
I knew for sure this sight was defective, so I returned it for a refund.
Kudos to Opticsplanet for their return policy!
I've decided that my next purchase will be a Eotech EXPS2
Pros: looks good
Cons: turns off when bumped.
This review was written in the old system and had content requirements that are different than reviews written today.