What did that run you? How available are selector switches for Glocks?
I don't understand the legality of this since the sear components are not serialized on a handgun. How can you put it on a 3rd Generation (read: post ban) handgun?
The auto sear is serial numbered, I have one on my G20 as well. I bought these through my department and they will have to remain with the department when I get a good job like Dcortez. The sear works like the AR15 drop in auto sear (dias), whatever rifle it is installed on becomes the machine gun, these sears are multi Glock so that will work on any Glock.