I currently have the single stack Kimber Next Gen Pro 1911 9mm commander model. I have put a total of 400 or so rounds thru the gun so and for the most part I have not had any real issues. I can tell you that it will run any mag (Kimber, Ruger, Tisas, Springfield, Checkmate) mag I have used, but it doesn't like mags from Wilson Combat or Nighthawk Customs. I think the cut of the top of those mags interferes with the slide stop or extractor, I can't say which. I have another no name brand mag that runs just fine, I wished I could fine more of those since they are 10 rounders.
Function-wise, the gun will run most of the ammo I have tested reliably with the exception of Fiocchi Blue box range ammo. Fiocchi orange box runs just fine. The blue box ammo gives me failure to go into battery issues. I may have 2-3 battery issues in 100 rounds, but No FTF or FTE issues at all. I am still working with the gun and I intend on getting it 100% reliable.
The gun itself is a great quality build. The frame to slide fit is exceptional and the finish is second to none. I have mounted the RMSc plate with an Osight SE optic. Both work as expected and I have had no issues with the plate so far. The gun has the G2 trigger that is also in the 2K11 and is also exceptional.
Would I buy it again if I had a second chance? Yes, I think I would.
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