I purchased Tisas made M1911 imported by SDS a few months back. I've been very impressed with it and I have fired several hundred rounds of FMJ's and a hundred rounds of Remington Golden Saber JHP's without a single issue. About the only difference I see from a GI issue M1911A1 is the lower ejection port and, frankly, I think these CNC machined pistols are as good or better quality as the WWII produced 1911's from Colt, Ithaca, or Remington Rand.