Great trigger, check your safety - HIPERFIRE Xtreme AK Mark 3 Single Stage 2lb Short Pull Trigger

This trigger was built to go along with Hiperfire's AK safety replacement, which is a decent product in and of itself. However, if you install this trigger not knowing that, and it's not listed on this product page, you will get a fantastic trigger, and your safety will not engage whatsoever. My sample size is only two AKs, a Romanian SAR and a converted Saiga, but for both it was the same, trigger will fire, will not go on safe, I suspect it'll be pretty similar for most others.
Another thing to note, if you do have a non standard safety like a Saiga, the replacement safety may not work, as the geometry on a lot of newer AK variants' safeties are very different. I'd recommend buying their safety first, making sure it fits, and if it does, then the trigger is quite excellent and you can be confident in it. If it doesn't, I'd recommend against it for safety reasons and going with something else, since there's some question as to whether the rifle's factory safety will operate with this trigger at all.