All the photos I've seen of these actions w/DBMs in place appear to be the same PTG Stealth DBMs that I've bought & used on my converted Rem 40Xs & the first three V22 repeaters that I put together. Only downside to the PTG DBMs that I had was that they were a very snug fit to any of the early V22 mags. Even after filing & polishing the insides of the magwells of these DBMs, I still had to sand a considerable amount on the mags to get them to drop free when the mag release lever was tripped. However, there's a real bonus to this snug fit, if you don't work on the front & rear ends of the mags or the DBM - you don't need to worry about unintentionally loading the front of the mag by pushing it up against a bag or barricade, because the mag to DBM fit is so snug that the mag won't rock back and cause feed jams. Now I can't say whether the current production Stealth DBMs are the same as the ones I have on my rifles, because it's been a few years since I bought one from PTG.
