Where Rapid Deployment Meets Modular Innovation Introducing the SMG-M-9 9mm, B&T’s latest fusion of Reduced Backpressure System (RBS) technology and an all-new, one-handed Super Quick Disconnect (SQD) tri-lug mount. This next-level suppressor attaches in seconds by simply pressing it onto any 9mm barrel with in-spec tri-lugs—like B&T’s APC9, SPC9, GHM9, or HK’s MP5 series. Locking in place without fuss, the SQD system is among the fastest 3-lug attachments on the market, ensuring seamless transitions and easy removal with just the push of a tab.