The 29th Day of Silence: BANISH 9 for HK MP5 + Subgun + Select-Fire 9mm
Last updated: June 6, 2026 · Originally published: May 15, 2026
In This Article
- The BANISH 9 Suppressor: Maximum Quiet for 9mm Subguns, PCCs, and FRT-Fueled Trips to the Range
- Specs at a glance
- Why subgun owners reach for the BANISH 9
- How it sounds and shoots on a subgun mag dump
- Who this suppressor is best for
- How to enter The 29th Day of Silence
- Frequently asked questions
- Related reading on PopularSuppressors.com
BANISH 9 · The 29th Day of Silence · Silencer Central’s 100 Days of Silence
The BANISH 9 Suppressor: Maximum Quiet for 9mm Subguns, PCCs, and FRT-Fueled Trips to the Range
The BANISH 9 from BANISH Suppressors brand is a full-size, purpose-built 9mm suppressor engineered for serious sound suppression without sacrificing versatility or reliability. Released in mid-2025, it measures 7.16 inches long with the included Micro Booster installed (or 6.8 inches when run direct-thread) and weighs a minuscule 8.57 ounces with the booster or 6.73 ounces without. It features a lightweight 7075 aluminum main tube and front cap paired with 14 precision titanium baffles, delivering an impressive 34 dB sound reduction! Positioned as one of the quietest 9mm suppressors available the BANISH 9 is rated for .380 ACP through 9mm, plus .300 BLK and .350 Legend. It is fully full-auto rated on 9mm supersonic and .300 BLK subsonic ammunition. Available in black or tan Cerakote with a lifetime warranty against manufacturing defects and normal-use damage, it ships with a 1/2×28 Micro Booster and supports additional direct-thread and HUB-compatible mounts. MSRP sits around $999 (often discounted or available via eZ-Pay plans), making it a premium yet accessible option for dedicated 9mm shooters.
Short answer: the BANISH 9 is a 7-inch (full) or 5-inch (short) Grade 5 titanium 9mm pistol suppressor, weighing 6.7 oz full and 5 oz short, with 1/2-28 direct thread plus an included Nielsen device for tilting-barrel hosts. Sound reduction lands at 32 dB on 9mm per BANISH metering. Full-auto rated. MSRP is $999. Entry runs 10 AM CT to 10 PM CT today. All giveaways require a separate entry.
Specs at a glance
| Caliber rating | 9mm Luger, .300 BLK subsonic |
|---|---|
| Length | 7.0″ full / 5.0″ short () |
| Diameter | 1.375″ |
| Weight | 6.7 oz full / 5.0 oz short |
| Material | Grade 5 titanium tube, 17-4 PH stainless baffles |
| Mount | 1/2-28 direct thread (Nielsen device included) |
| Sound reduction (dB) | 32 dB on 9mm (per BANISH) |
| Full-auto rated | Yes |
| MSRP | $999 |
Why subgun owners reach for the BANISH 9
Submachine guns (SMGs) are compact, select-fire firearms chambered primarily in pistol calibers like 9mm, designed for close-quarters work with high rates of fire and controllable recoil. Iconic examples include the HK MP5 and its civilian-legal SP5 clones, as well as modern offerings like the B&T APC9 or Sig MPX. For most civilians, owning a true transferable full-auto SMG is either prohibitively expensive (pre-1986 examples) or simply unavailable. The practical and far more affordable path to that rapid-fire experience today is pairing a semi-automatic MP5/SP5 clone, Scorpion EVO, or 9mm AR-pattern pistol caliber carbine (PCC) with a forced reset trigger (FRT). Popular FRT setups include Atrius Development Group in 9mm AR lowers, or compatible kits for Scorpion and MP5-style platforms. These allow extremely fast semi-auto fire by resetting the trigger mechanically with each shot. FRT triggers are capable of delivering mag-dump fun that feels remarkably close to full-auto while remaining fully legal and accessible.
Subgun and FRT-equipped PCC owners gravitate toward the BANISH 9 precisely because it is optimized for the high-volume, rapid-fire demands of these platforms. Its titanium baffles and aluminum construction strike an ideal balance of durability and low weight, shrugging off sustained strings without overheating or shifting point of impact dramatically. It carries a full-auto rating specifically for 9mm supersonic ammo, so it handles the heat and gas volume of FRT mag dumps or even bursts on registered subguns with ease. BANISH backs it with the same no-questions lifetime warranty that the entire lineup enjoys, giving owners confidence that this can is built for a lifetime of hard use rather than range toy duty. The result is a suppressor that prioritizes maximum quiet and shooter comfort on the exact hosts where blast and recoil become fatiguing fastest.
How it sounds and shoots on a subgun mag dump
On the range, the BANISH 9 transforms a PCC or FRT-equipped host into something dramatically more enjoyable. During mag dumps on a typical 9mm carbine or MP5-style clone, it drops the report into that deep, satisfying “thump” territory. The BANISH 9 is noticeably quieter than most competitors and far more hearing-friendly even without ear pro for short sessions and almost Hollywood quite when paired with subsonic ammo. Recoil is perceptibly reduced thanks to the baffle design and Micro Booster’s gas management, keeping the muzzle flat and follow-up shots lightning-quick even under rapid FRT fire. Blast is tamed significantly forward and downward, minimizing gas to the shooter’s face and keeping the action cleaner. At just 1.35 inches in diameter and under 7 inches long (especially when direct-threaded on a PCC), it blends seamlessly onto most hosts without turning a nimble MP5 clone, Scorpion or Kuna into an unwieldy club. Shooters consistently report it feels balanced and natural, preserving the quick-handling character that makes these platforms fun in the first place.
Mounting + select-fire host compatibility
Host compatibility is where the BANISH 9 truly shines for mixed pistol/PCC use. It ships with BANISH’s proprietary Micro Booster (a Nielsen-device-style assembly in 1/2×28), which is a game-changer for semi-auto pistols: the booster allows the suppressor to move slightly rearward with each shot, reliably unlocking the action. The booster ensures consistent cycling on blowback or short-recoil 9mm handguns without the heavy spring rates or reliability issues common to fixed-mount cans. Pistol shooters care deeply about this because it means the gun runs like it’s supposed to, every time! For PCCs, subguns, or lever guns, simply swap the booster for one of BANISH’s available direct-thread mounts (1/2×28, 5/8×24, or M13.5×1 LH) and the can becomes lighter and shorter with zero back-pressure penalty.
Who this suppressor is best for
Ultimately, the BANISH 9 is the ideal suppressor for PCC enthusiasts, FRT fans, and anyone chasing that rapid-fire 9mm experience. Whether you’re running an MP5/SP5 clone at the range, mag-dumping a Scorpion EVO or KUNA with an FRT, or even building the ultimate home-defense carbine. It delivers class-leading quiet, low recoil, and proven hard-use durability exactly where it matters most. While true pre-86 full-auto subguns remain out of reach for most shooters, the explosion of quality FRT triggers has democratized fast, controllable fire for everyday enthusiasts. The real “cost” of the hobby quickly shifts from the gun or suppressor cost shifting to the ammo bill. Once you experience a quiet, flat-shooting PCC mag dump, you simply don’t want to stop. For pure pistol-only use, the ultra-compact BANISH 9K (lighter, booster-free, and direct-thread) might be the better pick in the BANISH lineup. For multi-caliber rifle work, step up to the BANISH 30 series. But if your focus is 9mm subgun-style fun on PCCs and FRT platforms, the BANISH 9 is hard to beat.
How to enter The 29th Day of Silence
Entry to The 29th Day of Silence runs free and takes about two minutes. The window opens at 10:00 AM CT and closes at 10:00 PM CT on May 15, 2026.
No purchase necessary. 21+. U.S. residents only, except residents of CA, DE, HI, IL, MA, NJ, NY, RI, FL, and DC. All giveaways require a separate entry. Winners posted to the Winners Page and emailed the following day. See Official Rules: popularsuppressors.com/100-days-of-silence/official-rules/
Void in any other state or locality where suppressor ownership is prohibited or where this giveaway is otherwise restricted by law.
Frequently asked questions
Does the BANISH 9 work on an HK MP5?
Yes. HK MP5 and HK SP5 platforms with 1/2-28 threaded barrels accept the BANISH 9 direct-thread without adapter. The full-auto rating supports sustained cyclic fire on appropriately rated MP5 hosts.
Does the BANISH 9 work on a B&T APC9 select-fire?
Yes. B&T APC9 select-fire variants with 1/2-28 threading mount direct. Verify your specific APC9 configuration’s thread pitch — APC9-Pro variants may use non-standard threading.
Does the BANISH 9 work on a MAC-10 or MAC-11?
Sometimes. MAC-pattern subguns often ship with 3/4-10 threading rather than 1/2-28. A thread adapter is typically required. Verify your specific MAC’s threading before purchase.
What is the BANISH 9?
A full-sized 9mm pistol suppressor. 7 inches and 6.7 ounces full or 5 inches and 5 ounces short. Grade 5 titanium tube, 17-4 PH stainless baffles, full-auto rated.
Is the BANISH 9 full-auto rated?
Yes. BANISH rates the 9 for sustained automatic fire on appropriately rated 9mm hosts including subguns, select-fire PCCs, and transferable machine guns within published duty cycle.
How quiet is the BANISH 9 on a subgun?
Sound reduction lands at 32 dB on standard 9mm per BANISH’s published metering. On sustained subgun mag dumps, the reduction keeps the line manageable across 30-round bursts.
Does the BANISH 9 cover .300 BLK subsonic?
Yes. The 9 covers 9mm Luger and .300 BLK subsonic on appropriately rated hosts. Supersonic .300 BLK belongs in a dedicated rifle suppressor.
What does the BANISH 9 cost?
MSRP on the BANISH 9 is $999. Congress eliminated the $200 federal NFA tax stamp on January 1, 2026, so your only out-the-door cost covers the suppressor itself plus any dealer fees.
Do I still need to register a subgun suppressor?
Yes. Federal Form 4 registration with ATF still applies before you take possession of any suppressor. Congress eliminated the $200 federal tax stamp on January 1, 2026, but the Form 4 process remains in place. Transferable subgun and post-sample registration follows separate processes.
Who can enter The 29th Day of Silence?
U.S. residents 21 years of age or older may enter, except residents of CA, DE, HI, IL, MA, NJ, NY, RI, FL, and DC. All giveaways require a separate entry. Void where prohibited by law.
When does The 29th Day of Silence close?
The entry window opens at 10:00 AM CT on May 15, 2026 and closes at 10:00 PM CT the same day. Winners are posted to the Winners Page and emailed the following day.
How are winners notified?
Winners are posted to the Winners Page on PopularSuppressors.com and emailed the following day. Winners must return a signed affidavit by physical mail to Brand Avalanche Media, Inc., 4343 16th St #161, Moline, IL 61265.
FTC disclosure: This article is part of Silencer Central’s 100 Days of Silence, a sponsored editorial campaign on PopularSuppressors.com. Prizes are provided through the campaign. Editorial views are the author’s own. Brand Avalanche Media, Inc. operates PopularSuppressors.com.
