JK 155 VERSAX™ .45cal


Available on backorder

  • Add A Muzzle Device

    Add A End Cap

    Add A Mount

Subscribe For Stock Notifications

One suppressor to rule them all! Ideal for pistols and submachine guns up to 45 ACP and also rated for 300 BLK, 458 SOCOM, 44 Mag, 45-70 Gov’t, and even 300 Win Mag Super lightweight and Mission Configurable HUB compatible; ships with JK taper mount

Incredibly versatile, the JK 155 VERSAX .45CAL is ideal for 9mm, 10mm, 40 S&W, and 45 ACP pistols and is one of the lightest pistol suppressors on the market! At the same time, it’s stout enough for full-auto use on 300 BLK, 458 SOCOM, and many more, and for sporting use on 44 Mag, 45 Colt, and 45-70 Gov’t on up to 300 Win Mag.

SKU: JK-155VERSAX45 Categories: , , ,
  • Specs
  • Features


There’s quiet on a dB meter, and then there’s quiet to the ear. With JK Armament’s Tone Technology, you get both! Tone Technology plus the included Tone Tuner refine the 155 VERSAX .45CAL’s sound signature for a solid, deep tone that’s more pleasing to the ear.

Extremely lightweight and fully Mission Configurable, the JK 155 VERSAX .45CAL suppressor is right at home on every 9mm, 10mm, 40 S&W, and 45 ACP in your collection, from handguns to full-auto subguns. 

Employing six, user-configurable 7075 billet modular baffles plus one JK 155 LT Tone Tuner keeps weight to an absolute minimum while providing solid sound suppression performance along with JK’s pleasing Tone Technology sound.


In its micro configuration, the VERSAX .45CAL is 3.3 inches long and weighs a shockingly light 3.7 ounces. In its full configuration with all six baffles, it’s still only 7.3 inches long and weighs just 8.5 ounces. By simply adding or removing baffles – no specialized tools are needed! – the user can choose the length, weight, and sound suppression that’s right for the firearm and the mission.

In addition to the modular baffle and end cap design, the 155 VERSAX is even more Mission Configurable thanks to its industry-standard HUB 1.375×24 mount size. This means dozens of mounting options are instantly available! From the included JK 155 LT Quick Attach Taper Mount, which fits our industry leading JK muzzle devices, to pistol boosters, direct thread fixed mounts, tri-lug mounts, QD mounts, and much more, the versatility of the HUB standard can’t be overstated.


The JK 155 VERSAX .45CAL is rated for full-auto use with effectively every handgun caliber plus with 300 Blackout, 350 Legend, 450 Bushmaster, 458 SOCOM, and more. It’s rated for sporting use on 223/5.56, 44 Mag, 45 Colt, and 45-70 Gov’t on up to 300 Win Mag. See the Barrel and Caliber Ratings chart below for barrel length restrictions and more information.


(1) JK 155 LT Quick Attach Taper Mount

(1) JK 155 LT 2.5” Tube

(6) JK 155 LT Baffle

(1) JK 155 LT Flash Reducer End Cap

*PRODUCT UPDATE: VERSAX Suppressors ordered after 04.10.2024 will ship with a 6th baffle in place of a tone tuner. The tone tuner configuration can still be ordered through our VSX custom configurator. If you need help placing a VSX order please contact support@jkarmament.com.


Spec NameSpec Value
Length: 3.3 - 7.4” (Configurable)
Length No Mount: 2.65" - 6.75” (Configurable)
Diameter: 1.55”
Weight: 45cal: 3.7oz - 8.5oz (Configurable)
Color: Black
Material: 7075 Billet Aluminum
Coating: Type 3 Hard Anodize
9x19mm, 38 Special, 357 Magnum, 40 S&W, 10mm Auto, 45 ACP, and all smaller pistol cartridges Full-Auto. No Minimum Barrel Length.
Minimum Barrel Length: 300 Blackout Full-Auto. No Minimum Barrel Length.
Minimum Barrel Length: 450 Bushmaster, 458 SOCOM Full-Auto. 8"
Minimum Barrel Length: 350 Legend, 45-70 Gov’t, 450 Marlin Full-Auto. 16"
Minimum Barrel Length: 223 Rem / 5.56 NATO Sporting: 14.5"
Minimum Barrel Length: 7.62x39 Sporting: 8.5"
Minimum Barrel Length: 243 WIN Sporting: 16"
Minimum Barrel Length: 308 WIN / 7.62X51 NATO Sporting: 16"
Minimum Barrel Length: 6.5 CREEDMOOR Sporting: 16"
Minimum Barrel Length: 7MM REM MAG Sporting: 20"
Minimum Barrel Length: 300 WIN MAG Sporting: 20"


Pride and quality workmanship goes into all of our American-made, JK products, and we stand behind them! WE GUARANTEE OUR PRODUCTS

There are no reviews yet. Be the first one to write one.

Age Verification



Example Build 1
Example Build 2
  • 155 Series
  • HD base tube
  • Baffles:
    • 1x .30 cal HD Rifle
    • 4x .30 cal PRO Rifle
    • 5x 9mm LT Pistol
  • LT Extension Tube
  • End Caps:
    • 1x .22 cal LT Flash Hider
    • 1x .30 cal LT Compensator
    • 1x 9mm LT Flash Reducer
  • Mounts:
    • 1x PRO QA Taper Mount
    • 1x 1/2x28 Thread Mount
    • 1x 5/8x24 Thread Mount
    • 2x .22 cal Bald Eagle
    • 2x .30 cal Bald Eagle
    • 1x 9mm Bald Eagle
    • 1x 1/2x28 Pistol Booster

With this build I can suppress every .30 caliber and smaller rifle and every 9mm and smaller pistol in my collection. Whether I’m running my AR-15 or AR-10 hard – even full-auto – or I’m on a spot-and-stalk hunt with a lightweight bolt-action rifle, or I’m plinking or varmint hunting with a rimfire rifle, or I’m shooting pistols and pistol caliber carbines in 9mm or smaller, this one suppressor can be configured so it’s ideally suited for each and every one of those things and more.

Heck, if I also owned a 45 ACP pistol and/or a 458 SOCOM rifle or a .45 cal lever action I could add 5x .45 cal LT and/or PRO Pistol baffles and have those guns covered, too!

  • 105 Series
  • LT base tube
  • Baffles:
    • 1x .22 cal HD Rimfire
    • 6x .22 cal LT Rimfire
    • 6x 9mm LT Pistol
    • LT Extension Tube
  • End Caps:
    • 1x .22 cal LT Flash Reducer
    • 1x 9mm LT Flash Reducer
  • Mounts:
    • 1x 1/2x28 Thread Mount

With this build I can suppress all of my rimfire rifles and pistols plus anything in 5.7x28mm. It’s also a Mission Configurable 9mm pistol and PCC suppressor that’s capable of being run in a full configuration for training on the shooting range and a short configuration for concealed carry. It’s so lightweight that it doesn’t need a booster!