Boss Commander SWAT: Jet Powered 9mm Silencer Perfection

CANCON South Carolina 2024 was a great event for a lot of reasons. New venue, bigger crowd, and the BBQ is better in South Carolina than it is in Georgia (fight me in the comments). 

The highlight of the event for me was the BOSS Silencers booth with its wide range of great-sounding cans. While the GUILLOTINE 5.56 and the price of only $500 is what won other editors’ hearts during RECOIL’s Best Suppressor Test, what caught my eye was the then-unreleased Commander SWAT.

At 5.5-inches long, built like a tank but only 14 ounces of gravity and an amazing sound quality — it was top of my list to test once I could get my hands on one after release. Fast forward a few months to February 2025, and the BOSS Commander SWAT landed at my FFL and the fun started.

SPECS:

• Dimensions: 1.75″ x 5.5″
• 17-4 H900 Stainless Steel Baffles/Mount/Cap, Grade 9 Titanium Tube
• 14oz without mount
• Full-auto rated
• No barrel restrictions, optimized for sub-sonic 9mm
• Best suited for SMG/PCC, not suitable for handguns
• Glacier Black, High Temp Cerakote, 1800 degrees F
• Factory Serviceable

JET DIFFUSION TECHNOLOGY

I’ll admit, I don’t know enough of the science to totally follow just how this works. But if you talk to the brains behind the design at BOSS, you can get a better description of how it actually happens. Bottom line, BOSS uses Jet Diffusion Technology inspired by rocket engine designs to make their suppressors work and to reduce back-pressure. 

Rocket engines are all about controlling and directing gas flow, BOSS’s Jet Diffusion Tech “inverts the flow to accept high speed gasses and slows them down using multiple, progressive diffusion chambers”.

These aren’t just standard baffles stacked in a tube; BOSS actually has some secret sauce in the mix, and it works really, really well.

Shooting BOSS suppressors alongside dozens of other cans at CANCON South Carolina 2024 made it easy to tell just how different BOSS suppressors are compared to most of the rest of the industry. 

ON THE RANGE

Since the Commander SWAT came home with me, it has lived on a Springfield Armory KUNA, the new roller-delayed PCC officially released just a few days ago. Lucky for me, Springfield sent one out months ago for testing. 

With how compact the Commander SWAT is and the fact that it is designed for PCC, the pairing was a natural choice and one that turned out wonderfully well. From range days to local 2-Gun and PCSL matches, the Kuna and Commander SWAT have been a perfect pair.

Optimized for sub-sonic 9mm the Commander SWAT is Hollywood quiet with 9mm loads that don’t break the sound barrier. 147gr Federal HST, 130gr Federal PCC Syntech, 147gr Super Vel Hush Puppy, and more all sound amazing. 

Even using supersonic loads like 124gr S&B, 115gr anything, or 100gr Super Vel PCC ammo — the Commander SWAT still sounds great and takes a massive bite out of each ammo’s sound. In fact, with ears on, it was sometimes hard to tell the difference between supersonic and subsonic loads with just how well the BOSS can works.

BRUTALITY TESTED

With over 1,000 rounds through the KUNA and the Commander SWAT, it was time for an ultimate testing ground — InRangeTV CQB Brutality-West 2025. This match is a once-a-year event that is a must-attend match in my book. Held at the Southern Utah Practical Shooting Range in St. George, Utah, it isn’t just a great match at a good venue; it’s also the harshest match for gear I’ve ever shot.

The dust in southern Utah is a super fine powder that is sticky and gets everywhere. It is inescapable, inevitable, and will cause even super-reliable firearms to fail.

It also has an extremely high round count. Final count on shots fired for 2025 with the Kuna was over 400 across 8 stages.

All 8 stages were shot using Super Vel Hush Puppy 147gr subsonic ammo, and every shot fired was taken with the BOSS Commander SWAT. This extended round count in a harsh environment cemented in my mind just how good the Commander SWAT really is. By far, the loudest thing on the range was the bullets hitting the steel. 

Even with just using direct thread mounts, the Commander SWAT never came loose during the long day of shooting, and every shot sounded great. It was by far the most polite-sounding gun on the range. Even the first-round pop was barely noticeable. 

LOOSE ROUNDS

PCCs are wildly underrated by most people, and suppressed PCCs are ten times as much fun and add layers of practical benefits that cannot be ignored. There are a lot of decent 9mm suppressors on the market, but there are only a few that are truly great. The BOSS Commander SWAT is one of the greats. And with a price tag of only $800, it might be the best return on your money in the entire 9mm game.