Do not buy (undeliable) - Sightmark LoPro Green Laser Sight

I bought a ready to go tactical 7.62 which came equipped with one of these. It stopped working after one shooting session. Maybe 100 rds of ammo. I tried to just replace the battery, but that wasn’t it. Sooooo I tossed it. Well I liked the look of it and purchased another one. Since it did complete my rifle’s tactical look. Plus this item was on it to begin with. Well the new one I got did the exact same thing. Only thing is I never shot any rounds. It just died after 3 days. Stay far away these thing are junk!!! And the worst part is they want $100!!!! I’d give it 0 stars if I could!