I have the match in 10mm and the stock in .45ACP. Actually I liked the match SAO trigger better so I swapped uppers since I shoot a lot more .45 than 10mm.
Had some problems with the 10mm mags that I appear to have resolved, but no issues with the .45 other than a few stovepipes from weak ejection during the first hundred rounds or so (its a very tight gun out of the box). I started out with my 200gr reloads, maybe full power factory ball would not have had any issues. But its nice to have the gun lay the brass at my feet
the 10mm OTOH launches them into near orbit.
The sights on the Stock are what sold me, that and the EAA catalog says the Match has polygonal rifling -- I need to shoot lead in the .45. The Stock sights are amoung the few irons I can still use to good effect.
The rifling on my 10mm may be polygonal, but its nowhere near as equilateral and shallow as the Glocks are, so it may be OK with lead bullets if the .45 version is similar.
Great guns for the money (both the Match and the Stock) but don't expect any useful customer service from EAA. Buy the Mec-Gar Witness .45 magazines for the .45 Match, as they are cheaper and better quality than the EAA. Unfortunately EAA is your only option for the other calibers.
Here is a quick photo of the swapped uppers:
--wally.