Bad laser sight - Cactus Jack Pistol Mini Laser Sight

I know its cheap, and i know its tempting, i sure was, but this little laser will seem amazing at first glance, but within 10 minutes you'll realize several draw backs, some of which have been covered by other reviews on here, a few of which i had seen before ordering, and hoped they were just defects in one unit and not all, but that does not seem to be the case. My laser had a problem with the mount groove not being filled deeply enough to catch on botch rails of the gun equally so that it actually mounts horizonatally. However, the laser will be crooked to the eye no matter what, unless you get a gun smith involved. As for the laser it self, turn it on for 1 min straight, and see if it dims significantly like mine does, even with brand new batteries. As for the laser build, some parts like the bottom rail ( which is basically useless ) is metal, which is great, but the battery cover ( which is essential and will be used frequently over the lifetime of the laser) is plastic. Even with using the tools provided ( a set of allen keys), i managed to slightly over tighten the cap and now it wont open because the allen key (metal) has filed the cap in the process of opening ( plastic cap). Besides all of that, even if you manage to zero it fine, dont care about the attachment looking crooked and wont have the laser on for more than 1 minute, then yeah its great, but that's not a realistic standard for a PISTOL LASER ATTACHMENT. Not to mention if you are trying to use this on you EDC, you'll quickly change your mind when the gun would fit any holser correctly due to the mounting screw. All in all, not worth it, after shipping its ~ $28, id rather put $20 more and order a decent laser sight. Cactus Jack if you are reading this, i will gladly remove my review if you guys fix this version, which won't cost ya much (file a bit more on a groove, and use a different flushed mounting screw, and use a metal battery cap, as well as fix the laser performance issue.