I have several New Detonics CM's, they are all prototypes so I guess these may not be representative of the later models. The ones I have are great in fit and finish. Reliablility is also high. Similar in tolerances to a Scoremaster. I think the one on gunsamerica must be high because the gentleman that is selling it happens to be a great pistolsmith and has done some improvements to the interanals of the gun. I guess I've been lucky but I have never had any problems with New or Old Detonics except the occasional mag change outs that everyone talks about causing cycling problems.