do not believe mine is the ultimate maybe the start comp kit installed it connector , trigger spring ,and plunger spring in my gen 3 17 and had no reset put the stock connector back in and had reset weird
how do you get to back order I emailed three times and recieved 1 repley of 3 to 4 weeks behind mailed again to ask about ordering and recieved no reply he must be busy
http://summitgunbroker.com/17-gen-3.html this is where I purchased mine it came with staked front sight had some wear striker was worn replaced it night sights still had decent life and detailed strip and clean all in all happy with it and mark is a good guy took time to answer my questions . if you do just clean it up real good and inspect it like any used firearm