I ordered additional moon clips for my S&W M686 and I have TK Customs moon clips for my S&W M629, M640 and M642 and all are great quality. I also had my cylinders for my N629, M686, and M642 cut for moons and they work great and the quality of the machining is great and had a good turnaround time. I have also bought moon clip loading and unloading tools from them. I would highly recommend them to anyone!