I am a shooting instructor and shooter and recently bought an S&W 627 (pre lock) V Comp. Lovely gun, but definitely challenging fitting moon clips in. Chambers were very much squared off at the edges. Well, who doesn't want to be like JM, so I contacted TK Custom. Service was outstanding, they answered my questions and were extremely patient. Sent the cylinder off and a week later it was back as advertised. Flawless work, punctual, highly professional. I have 3 students and a co-instructor with the same gun and they were so impressed they are all having the same work done. I highly recommend TK Custom for any revolver work you may need done. Top notch outfit!