Was having light strike problems so replaced firing pin and rebound spring. Works great now! And the TK firing pin leaves a much larger mark on cases. Am very happy and would buy again.

Real easy install, now I don’t have any stove pipes, or misfires.

Last time at the range with the Mark IV, I started having stovepipes. I watched the video for replacing the extractor and then one for replacing the firing pin and decided to order the kit instead of just one part. The videos described disassembly and reassembly perfectly and when the parts came, they installed as shown. Hopefully it quits raining soon so I can take it to the range and try it out!

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This is actually the second of these packs that I've bought. I bought the first because I started experiencing some FTFs and FTEs on my Ruger MkII and I remembered .22 Plinkster saying this kit is one of the first thing he replaces on his Rugers and S&Ws. Installation is super simple, much simpler than I thought and TK provides great videos to walk you through installation. I am not a gunsmith by any stretch of the imagination and this really was an "anyone can do it install". After the install I think I had one FTF and zero FTEs over the next couple of months of shooting. Just bought a MkIV and this was one of the first upgrades I purchased. Definitely recommend!!

My 22/45 was starting to fail to fire and extraction problems. I purchased this kit as a solution. Easy to install using basic tools and folloeing TK instructions and some online videos. Fair price and arrived quickly. Problems resolved.

Fast shipping, easy install,great product

I was surprised to find that the old rebound spring on my 18 year old MkII was considerably shorter than the replacements provided in this kit. Since the pistol was old, I replaced the spring, firing pin and extractor. (I also bought the tool for this purpose.) Excellent online instructions. Trouble-free repair. Pistol works great now! I'll check again in another 18 years :) PS: This is a very fine pistol.

I have three MK IIIs that I target shoot with regularly. I normally use a very inexpensive ammo and get a few FTF rounds. Whikch I just live with due to the cost. ($.02/round). To minimize the FTF I cleaned the bolts and replaced two of the three firing pins. The one that I skipped works 100% perfect so why mess with it? Nothing is likely to improve on that one. The other two are better and changing ammo brand, of course, helps big time. I am pleased with my Tandemkross upgrades. I love the MK IIIs and, once you get it, cleaning is routine. Tom in Georgia