This is my third Rock Island gun, and the first one to give me any trouble. I called Armscor in Nevada and described the problem, Fed Ex picked the gun up the next day and UPS dropped it back off just over two weeks later. Pretty impressive customer service in my opinion. Since getting the gun back I have put about 400 rounds through it and it's behaving very well. If you are not familiar with the 22TCM, it shoots a 40gr bullet out of a cut down .223 case at between 2000 and 2100fps. The gun also comes with a 9mm barrel, like getting two guns in one. The first thing you notice when shooting it is how easy it is to rack the slide, and the second is how light the recoil is, immediately followed by a bang and a flash that are as radical as the rack and recoil are tame. Armscor says the muzzle energy is similar to a .45acp and from the reaction of the steel targets I wouldn't doubt it. For anyone who has trouble racking the slide on a semiauto or is recoil sensitive, this might be a viable option. It comes with adjustable sights as the POI will be different when changing barrels, and comes with a sleletonized hammer and beavertail grip safety. Accuracy is very good, I had to tweak the sights a little to zero the windage but after that hitting clay pigeons at 25 yards was no trouble. The only negative is the cheap looking plastic grips, although VZ aparantly makes a set for this gun that I will probably get.