The T9/T9.1's do not have a true breech. The barrel makes the breech, by adding the barrel(whichever you want stock barrel/modified stock barrel/Aftermarket barrel) you add the breech.
Also the T9.1 has the in air stock option. As well as coming FS ready from the factory as you already know.
"May we never forget the ones that came before, the ones with us now, and the ones that will come after."
"Make (your attacker) advance through a wall of bullets. I may get killed with my own gun, but he’s gonna have to beat me to death with it, ‘cause it’s going to be empty." Clint Smith