MP9 and TP9: A Complete History From Steyr to B&T
This guide details the disassembly of the B&T MP9/TP9, originating from the Steyr TMP. It covers separating the upper and lower receivers, removing the bolt carrier, and extracting the rotating barrel. The process highlights the firearm's unique short-recoil, rotating barrel action with 8 locking lugs and the cam groove mechanism. The information is presented with high authority by Ian McCollum, a recognized firearms historian.







