The B&T SMG-M-9 9mm suppressor is a modular titanium can built around B&T's one-handed Rapid Quick Disconnect tri-lug mount (B&T part no. SD-SQD-M-9). It presses onto any 9mm barrel with in-spec tri-lugs, such as B&T's APC9, SPC9 and GHM9 or HK's MP5 series, and comes off with a twist. An RBS-compatible extension lets you run it short or at full length, and vented and non-vented endcaps switch the Reduced Backpressure System on or off. That gives four setups in one suppressor. The 3D-printed, weldless titanium tube keeps weight down on a gun that gets carried and handled a lot.

Key Specifications

• The caliber rating is 9×19, the 9mm Luger round most subguns fire.
• Weight runs from 13.6 to 19.8 ounces depending on configuration.
• Length ranges from 6.1 to 9.2 inches with the extension off or on.
• Diameter is 1.7 inches (45mm), a size that clears most handguards.
• Materials are titanium with a stainless steel endcap, light where it can be and hard where the blast hits.
• The finish is Type 2 anodized gray, a hard surface for regular handling.
• The included mount is a 3-lug RQD (Rapid Quick Disconnect), which locks onto tri-lug barrels by pressing on.
• The interface is HUB compatible, so the RQD mount can be swapped for any standard 9mm HUB mount.
• It ships with vented and non-vented endcaps, for reduced backpressure or a tighter gas seal.
• B&T lists no barrel restrictions, which keeps host choice open.

Frequently Asked Questions

Which guns does the RQD mount fit? Any 9mm barrel with in-spec tri-lugs. B&T names its APC9, SPC9 and GHM9 and the HK MP5 series.

What comes in the box? B&T lists the suppressor body, the SQD HUB mount, vented and non-vented endcaps, a wrench and a manual.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the B&T SMG-M-9 9mm Suppressor, 3-Lug RQD, Titanium

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through B&T‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer.