Is that Mark III also suppressed? I prefer the Mark 4 because I believe pistols should be easily disassembled and cleaned, but either one would be fantastic in Steel Challenge. I agree that cone baffles are the sure thing, nothing has changed there, just lots of fancy CAD and CNC to juice up the prices.
@imagineer, before this goes down the shady road, know that the alphabet agencies take the NFA seriously. If the NFA isn't complied with, it's an instant felony in most cases. Usually, you have to ruin or end somebody's life to earn a felony conviction in court, but with these types of toys, you can become a convict for your actions even if there is no victim and not a round was fired. For this reason, I ask that when it's NFA item story time, that you say you had a Form 4 tax stamp in hand. It's illegal to even possess an end cap or a baffle without one. Just so we don't attract unwanted attention, if story time isn't above board, it's best to save it for when it can be discussed off the record. But if you did your part to build legally, say so so that nobody gets the wrong idea about the information we share.
BTW, I shared a big stack of collected info on suppressors, sear blueprints, and other Class 3 with forum members recently using my own hosting resources. Some of it had shady roots (ca. 1980s anarchist books, etc.). Nothing wrong with information, but please, when the conversation turns from talk to construction and assembling, explain what legal credentials were used to do it (like an ATF Form 4 with tax stamp). We have to respect that barrier to have the conversation.
End of public service announcement.