The Banish 9K is a compact, direct-thread 9mm suppressor engineered for shooters who demand minimal weight and size without sacrificing sound reduction. Built from 3D-printed titanium and available in FDE with Cerakote finish, this metric M13.5x1 left-hand threaded can delivers 26 dB of sound reduction at the ear, bringing 9mm supersonic rounds down to 132 decibels. At just 4.1 inches long, 1.3 inches in diameter, and a remarkable 2.7 ounces, it's one of the lightest 9mm suppressors on the market—making it a serious option for concealed-carry pistol builds where every ounce counts.
What sets the 9K apart is its ability to function reliably on semi-auto pistols without a Nielsen device or booster assembly. Because of its featherweight design, the suppressor doesn't rob so much energy from the action that the gun won't cycle; you simply thread it onto your barrel and go. This direct-thread approach eliminates the need for a piston or mounting adapter, keeping your setup streamlined and reducing points of failure. For shooters running subsonic ammunition, the 9K is rated for full-auto fire, making it versatile for both standard and subsonically-loaded 9mm rounds.
The 9K's material science is solid: titanium construction balances durability with that featherweight profile, and the Cerakote finish provides corrosion resistance in the field. The M13.5x1 left-hand metric thread is direct-cut, so there's no adapter ring in the equation. If you're building a lightweight 9mm pistol platform—whether for concealed carry, home defense, or precision work with subsonic loads—the Banish 9K delivers suppression where it matters: in your hands and on your shot placement, not adding unnecessary weight to the gun itself.
Key Features
- Ultralight 3D-printed titanium construction at just 2.7 ounces
- Compact 4.1-inch length and 1.3-inch diameter for concealable profiles
- 26 dB sound reduction; brings 9mm supersonic to 132 dB at the ear
- Direct-thread design (M13.5x1 LH metric) requires no adapter or piston
- No Nielsen device needed—cycles reliably on standard semi-auto pistols
- Rated for full-auto fire with 9mm subsonic ammunition
- Compatible with 9mm, .380, 5.7x28, and .300 BLK subsonic
- FDE Cerakote finish for corrosion resistance and field durability
- Lifetime warranty
Specifications
| Caliber | 9mm (also .380, 5.7x28, .300 BLK subsonic) |
| Length | 4.1 inches |
| Diameter | 1.3 inches |
| Weight | 2.7 ounces |
| Material | Titanium (3D-printed) |
| Thread Pitch | M13.5x1 LH (left-hand metric, direct-thread) |
| Finish | FDE Cerakote |
| Mount Style | Direct Thread |
| Sound Reduction | 26 dB |
| Full-Auto Rating | 9mm supersonic and .300 BLK subsonic |
| Warranty | Lifetime |
Frequently Asked Questions
Will the Banish 9K work on my pistol without a Nielsen device?
Yes. The 9K is light enough that it won't rob so much energy from the slide that it fails to cycle. Simply thread it onto your M13.5x1 LH metric barrel and you're ready to shoot. No piston, booster, or Nielsen device required.
What calibers does the M13.5x1 9K support?
The 9K is rated for 9mm, .380 ACP, 5.7x28mm, and .300 BLK subsonic. It delivers 26 dB of sound reduction across these calibers and is rated for full-auto fire when used with 9mm supersonic or .300 BLK subsonic loads.
Is the M13.5x1 left-hand thread a metric or standard spec?
The M13.5x1 is a metric left-hand direct thread, not standard 1/2-28. Verify your barrel's thread pitch before ordering to ensure compatibility. Banish also offers the 9K in 1/2-28 if you need a different thread pattern.
How much does the 9K add to my pistol's weight?
At 2.7 ounces, the 9K is one of the lightest 9mm suppressors available. For reference, that's less than the weight of most pistol magazines, making it a practical choice for shooters concerned with slide and muzzle weight.
