It’s decidedly niche and not for the every-person on a budget, but damn it’s cool. This is the APC9K SD2. It’s a short (as in very short) SMG — less than 15 inches overall length and it’s integrally suppressed. In fact, it’s not just integrally suppressed, it utilizes a scalable suppressor system.
Let me back up.
Back in 2018, the US Army announced the United States Army Sub Compact Weapon (SCW) trials. Brugger & Thomet‘s entry to that contest (one of six) was the select-fire B&T APC9K. A little less than a year later the APC9K was selected. The company has now released a limited run of integrally suppressed APC9K variants (SD) for commercial sale.
APC9K SD2 Specs and Features
The weapon is based on the APC9 PRO series. That means it utilizes a hydraulic buffer to reduce felt recoil and muzzle rise, not that there’d be much to begin with, a non-reciprocating charging handle, and ambi controls.
The APC9K SD2 is chambered in 9x19mm NATO and is as small and easy to manipulate as you’d expect from something intended for a Personal Defense Weapon (PDW) role. Of its 15 total inches, just three of them are the ported barrel, and it weighs just a smidge under six pounds. That makes it, as far as I know, the most compact suppressed SMG conventionally available, at least without the second-stage suppressor.
The proprietary threads on the barrel allow you to stack the rest of the suppressor (remember, scalable, it has two stages) on there, thus making the already-silenter-than-when-unsilenced weapon even more silenter.
It’s science.
You can learn more about it at https://bt-usa(dot)com/products/apc9k-sd2/.
