Amazing craftsmanship, but geissele lowers are hard to find. will work on anything - Geissele Ultra Duty Lpk

This is an amazing kit. I'm going to save you some time the ambi safty selector has a center hole to unlock on both sides. You need to use a punch and the selector slides down ( this took the longest time for me to figure out) you can swap them to either side depending on your preferences. I am a leftie so I did have to buy a separate ambi mag release other than that it's all high end quality stuff! I wouldn't expect anything less from Geissele