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1 in stock (can be backordered)

UPC: 850038425494 SKU: JK-155VERSAX45 Categories: , Product ID: 31167


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 five, 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 five baffles and the Tone Tuner, it’s still only 7.3 inches long and weighs just 8.5 ounces. By simply adding or removing baffles and/or moving around or removing the Tone Tuner – no specialized tools needed! – the user is able to 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 45-75 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

(1) JK 155 LT Tone Tuner

(5) JK 155 LT Baffle

(1) JK 155 LT Flash Reducer End Cap


JK 155 VERSAX 45ACP is rated for full-auto use (4- to 8-round bursts every 4 to 8 seconds) on many pistol and some rifle calibers. It is rated for sporting use (10 rounds of fire followed by cooling to ambient temperature) on many rifle calibers.
9x19mm, 38 Special, 357 Magnum, 40 S&W, 10mm Auto, 45 ACP, and all smaller pistol cartridges Full-Auto No Minimum
300 Blackout Full-Auto No Minimum
350 Legend, 45-70 Gov’t, 450 Marlin Full-Auto 16”
450 Bushmaster, 458 SOCOM Full-Auto 8”
223 Rem / 5.56 NATO Sporting 14.5”
7.62×39 Sporting 8.5”
243 WIN Sporting 16”
308 WIN / 7.62X51 NATO Sporting 16”
6.5 CREEDMOOR Sporting 16”
8.6 BLK Sporting 16”
7MM REM MAG Sporting 20”
300 WIN MAG Sporting 20”

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