JK ArmamentJK 155 RPX 46
.45 / .46 Cal suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer
Notable features
- HUB Compatible
- Multi-Caliber
- Modular Length
- User Serviceable
- Full-Auto Rated
length
3.3–8.7″
weight
11oz
MSRP
$855
length
3.3–8.7″
weight
11oz
calibers
5.56–.45
material
Titanium · Aluminum
interface
HUB 1.375x24
MSRP
$855
- Overall length
- 8.7″
- Class
- .45 / .46 Cal
- n
- 105
- Range
- 3.84″–11.25″
- Median
- 8″
- Diameter
- 1.55″
- Weight
- 11 oz
- Material
- Ti-6AL-4V (Grade 5) Titanium & 7075 Billet Aluminum
- Max caliber
- .46 Cal / .458
- Base interface
- HUB 1.375x24
- Front cap
- JK 155 Front Cap
- Full-auto rated
- Yes
- Baffles
- 8
- Maintenance
- User serviceable
- MSRP
- $855
Longer than most .45 / .46 Cal suppressors
Length compared against the 105 .45 / .46 Cal suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Configurations
- Shortest configuration3.3″ · 3.6oz
- Longest configuration8.7″ · 11oz
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
- Base interface
- HUB 1.375x24
- Front cap
- JK 155 Front Cap
The HUB 1.375x24 is an open standard: 415 mounts and 818 muzzle devices in our catalog fit this suppressor, including JK Armament JK 155 Booster/3 Lug Adapter 1.125x28, AAC 51T S.T.A.M.P. Mount and AB Suppressor AB Raptor Adapter. You aren't locked into one manufacturer's parts.
Which ones fit your barrel and host?
Check in the BuilderManufacturer claim
- In its micro configuration the RPX 46 is 3.3 inches long and weighs 3.7 ounces; with all eight baffles it is 8.7 inches and 11 ounces.
- All RPX 45s produced after serial number RPX0848 are marked RPX 46; JK describes this as an in-line change highlighting multi-caliber capability, with identical performance apart from the now-included Bald Eagle muzzle device.
- A Grade 5 titanium JK 155 PRO blast baffle with seven user-configurable 7075 billet JK 155 LT modular baffles.
- Rated for up to 458 Win Mag and 338 Lapua Mag, and full-auto rated in 45 ACP and 9mm.
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- JK positions it across 45 caliber firearms — handguns, lever actions, straight-wall hunting rifles and full-auto subguns — while remaining compatible with smaller centerfire cartridges.
- Includes a JK 155 LT Quick Attach Taper Mount, a JK 155 LT 2.5-inch tube, one JK 155 PRO 45cal baffle, seven JK 155 LT 45cal baffles, a 45cal JK 155 LT flash reducer end cap and a 45cal 5/8x24 Bald Eagle Compensator muzzle device.
- Full-auto with no minimum barrel length for 9x19mm through 45 ACP and for 300 Blackout; 450 Bushmaster and 458 SOCOM require 8 inches full-auto; 350 Legend, 400 Legend, 45-70 Gov't and 450 Marlin require 16 inches full-auto.
- Sporting minimum barrel lengths: 223 Rem / 5.56 NATO 14.5 inches, 7.62x39 8.5 inches, 243 Win 16 inches, 308 Win 16 inches, 6.5 Creedmoor 16 inches, 7mm Rem Mag 20 inches, 300 Win Mag 20 inches, 458 Win Mag 20 inches.