Garbage - stay away!!!! - NcSTAR Tactical Blue Laser w/Quick Release Mount for Pistol

I had high hopes for this, had never purchased NcStar before. When I got it it was a very bright, visible laser. Went to the range, zeroed it and fired away (9mm). About 20 rounds later the thing was off its zero by about 4 foot at 15 meters. Rezeroed tried again, same thing. Would slowly lose its zero over 20 rounds. Came back the next week and tried again. This time the Quick Release Mount tabs were actually bent inwards! The stupid thing had actually deformed! It was now wedge into the rail and I had to use a flathead screw driver to depress the spring to get it off my pistol. Neither NcStar or Optics Planet will refund this garbage, they both same the other is responsible for a refund. Beware the most NcStar will do is replace it with the exact same thing with the exact same quality. Made off with my money. Buyer beware!!!!