Question about the SD
I have the B&T PrintX MP5SD suppressor that is said to also work for the Gen1 APC9-SD. However, I cannot find a Gen1 SD for sale anywhere and so I'm curious about the Pro.
Does the MP5SD PrintX suppressor not work at all on the APC9-SD Pro? I feel like I read somewhere that the thread pitch was different but cannot find where I read that. Additionally, if it is not compatible, how difficult is it to find a Gen1 APC9-SD?