Sorry I don't know where to find one, but I can tell you I have been very happy with my stainless steel cmmg kit. The stainless steel makes cleanup a lot easier and imo is worth the extra money. You probably won't get match accuracy, but mine will shoot remington subsonic ammo into 1 inch at 25 yards. This is through a 1:7 twist barrel. I tried my kit in a colt sp1 that has a 1:12 twist and accuracy was a lot better.
My kit has been extremely reliable. It has actually been the most reliable 22 I have used. The point of impact will probably be lower than 223 ammo. I turn my A2 sights up to the 500 meter mark and that puts me dead on at 25 yards. These kits will gunk up your rifle so cleaning after each use is nesessary. I have been happy with mine and would recommend the kit to anyone.