Red Laser Red Dot Sight Waterproof Military Grade Low Profile Compact with Rail Mount and Accessory

Genuinely expected a cheap crap toy for the price I paid. Was more than surprised with the item that arrived. Came complete with battery and the allen key to mount it, (but not the key to adjust it). Fits the standard picatinny rail like a dream and tightens fast. Button switch feels nice and works a dream. Has an undermounted pic rail to add further attachments which is slightly smaller than the normal 20mm one. Can't speak as to its longevity... but I will update if it dies. If you are reading this then its still going strong. Highly recommend.

I bought this to fix on to my adder crossbow. Fits on the picatini rail great. Works well and now allows me to sight a target in the dark. Downside fiddly to udjust to sight in first time and batteries don't last that long but does what I need.

A little fiddly to sight in but once done no issues

Took a while to get here (China probably) but well worth the wait and the money! Zeroing to a target took a little while, but with patience and small increments with the hex key, I got it pretty much bang on! Very pleased, ordered another for my other pistol.

Before I start I will profess I'm no expert!! I did manage to find the elevation and windage adjustment grub screws on the right hand side and the bottom of the unit when aiming the laser sight. Are the adjustments that can be made effective? It's questionable, at one point when trying to adjust the elevation I unscrewed the elevation adjustment screw all the way. As it came out I noted it's not attached to anything, which then raises question 'how does it adjust the targeting of the laser?' - perhaps someone with knowledge of these things can answer. I would say it gives you a general indication of where you're aiming and that's all. Perhaps not meant for the serious or professional shooter!

Perfect mounted directly under the barrel. It's close enough to the barrel that I zero it parallel so that I know my shot will land about 1/2inch above the red dot.

Laser beam not central and no way of setting it to shoot straight by grub screws. It just keeps adjusting to the left and way out at its fullest adjustment to the right where it needs to go. Someone in comments said, "Read the instructions!" Well, the invisible instructions are missing and not available anywhere online. This is for return very soon if I don't find instructions that make it work.

Easy to fit/operate. Limited range, suitable for pistol.