I bought a Mark III 22/45 Lite in the fall of 2014. I really like it, but after doing a fair amount of reading prior to it's purchase, I bought and added several things before even shooting it.
Got a Volquartsen target trigger & sear, and a Tandemcross Kanewolf slingshot conversion, hammer bushing, and an LCI replacement insert. I had some jams due to my not getting the magazine seated fully quite a few times, but I ended up buying a set of Tandemcross magazine bumpers and that problem (almost completely) went away.
