Like the man said, the Expert comes with the extended magazine well -- termed "jet funnel" by HK --in the 9mm and .40 caliber versions. If added to the .45 frame, the gun is not legal in IPSC standard class.
As far as the 12-round .45 mags for the full-size USPs, they are available from reputable dealers in the US and do not have postban markings. Contrary to the bull you read on the boards and even from HK USA, these mags are presumed by law to be legal because they do not have the required markings for postban mags.
As far as the 12-round .45 mags for the full-size USPs, they are available from reputable dealers in the US and do not have postban markings. Contrary to the bull you read on the boards and even from HK USA, these mags are presumed by law to be legal because they do not have the required markings for postban mags.