Sorry, but at $50, are you really expecting much ?
You haven't see the phrase, "you get what you paid for" ? Quality below average, design below average, battery life well below average, toughness below average.
Save yourself the headache and time and get yourself a proper, red dot. Yes, you'll spend more, but you put it on the gun and shoot, no fuss, no muss !
While I don't personally own this particular sight, I do own other Hawk optics. While not top of the line, they are plenty capable.
Shop Hawke Sport Optics Reflex Circle Wide View Red Dot Sight w/ Weaver Rail | $19.01 Off 5 Star Rating on 1 Review for Hawke Sport Optics Reflex Circle Wide View Red Dot...
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Another good one for a reasonable cost. I have an earlier version of this sight. Still...works well.
Shop Vortex Viper 1x24mm 6 MOA Red Dot Sight | Up to 29% Off 4.4 Star Rating on 116 Reviews for Vortex Viper 1x24mm 6 MOA Red Dot Sight Best Rated + Free...
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There are many others, but the price goes higher than I'd think that you want to spend..!
Mike