G&P M4 Type Red Dot Sight w/ 20mm Weaver QD Mount Base for Airsoft

"After returning the two defective sights I got before, I now have a data sample of four sights. THREE of the four did not work reliably or at all (in two cases). I have one that works and it works well. Adjustments are solid audible clicks, but the rubber retention things are garbage (they don't stay on while turning the caps); I threw those out. Dot appears pretty crisp for a $60 sight. However, a 25% reliability rating is not recommendable. I will be using the third broken sight for the nearby CQB arena because, if a BB does break through the included ARD, I won't be upset about it. Buy NCStar or Vism if you want a cheap optic, not this. Again, cannot recommend.

"Bought two of these at the same time. One works sporadically (but mostly doesn't), the other doesn't work at all. Gave two stars because they appear to be constructed fairly robustly.

"This sight was very unsatisfactory. During games, this repeatedly started dimming down and shutting off, even after I replaced the batteries with brand new ones multiple times. In terms of build quality, it's great. Metal feels very nice, killflash is handy, everything you could want in a sight except for reliable functionality is here. Would be great for an 11B army infantry kit if it worked reliably.

"Gentlemen, unfortunately, sometimes you get what you pay for.

This seemed to be a well-reviewed clone of the Comp M4. I am trying to create a clone-correct airsoft setup of my issued rifle, and did not want to go with some of the Amazon options that look like budget Aimpoint T1s, despite their longer track record. I was unfortunately let down.

This sight doesn’t work. Shortly after tightening the battery cap and turning it on, it will begin flickering. After a couple of minutes, it will stop working entirely. Reseating the battery provides a temporary fix, until you have to repeat the cycle all over again.

It appears that the cheapest option to get a reliable COMPM4 clone is to purchase a Sig Romeo7, for about 4 times the price of this sight. If you want to go cheaper than that, you can purchase one of the better reviewed 30mm cantilever red dots and replace it with a mount that mimics the CompM2. But in any regards, stay away from this sight.