First Look: JK Armament RPX .30Cal Suppressor

by
posted on April 23, 2025
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
LEDE RPX 30

JK Armament is proud to announce its all-purpose .30-caliber suppressor, the JK 155 RPX .30Cal.

With its .36-caliber bore and our most advanced baffle design that merges rifle and pistol suppression performance into a single suppressor, the 155 RPX .30CAL is ready for duty on pistols, carbines, rifles, machine guns, and more. With only a quick end cap swap to handle anything larger than .30 caliber, the RPX .30CAL has you covered from 9mm to 350 Legend to 300 Blackout, 338 ARC, .308 Winchester, .357 Magnum and so many more all the way up to .300 Win. Mag. (minimum barrel lengths apply to some calibers). Or, run it on 223/5.56, 5.7×28, and other small calibers with a .22-caliber end cap.

An extraordinarily lightweight suppressor, the JK 155 RPX .30Cal combines the benefits of the RCX and PCX lines. A grade 5 titanium blast baffle combined with seven, user-configurable 7075 billet modular baffles delivers heavyweight durability in a featherweight silencer. Visit jkarmament.com for more information.

Features:

  • Baffle design performs on rifle and pistol cartridges, supersonic and subsonic
  • Super lightweight for hunting and precision
  • Titanium blast baffle for full-auto ratings
  • .36-caliber baffles allow big bore and 9mm use with only an end cap swap
  • Industry-standard HUB 1.375x24 TPI mount size
  • ASR-compatible Taper Mount installed
  • Unlimited, Unconditional, Lifetime Warranty

Specs:

  • 7x 7075 billet aluminum JK 155 LT modular baffles
  • Grade 5 titanium JK 155 PRO blast baffle
  • JK 155 LT Flash Reducer End Cap
  • ASR-compatible JK 155 LT Quick Attach Taper Mount installed
  • Length: 3.3 to 8.7 inches
  • Diameter: 1.55 inches
  • Weight: 3.6 ounces to 11 ounces
  • Finish: Type 3 Hard Anodize and Cerakote

Latest

Ledeservice Awards More Than
Ledeservice Awards More Than

More Than $6.6 Million in Tribal Wildlife Grants to Advance Conservation

The U.S. Fish and Wildlife Service (USFWS) is awarding more than $6.6 million to federally recognized Native American and Alaska Native tribes to benefit fish and wildlife resources and their habitats. This year’s funding will support 35 tribes for conservation projects across 15 states, benefiting a wide range of wildlife and habitat, including species of cultural or traditional importance to Indigenous communities.

Hardware Review: TriStar KR.22

TriStar is noted for shotguns, but Bryce Towsley recently received a test gun from them that’s much different. Check out his review on the TriStar KR.22.

New for 2026: Browning Trail Cameras' Security Tree Strap

Browning Trail Cameras has released a Security Tree Strap, a durable and dependable mounting solution to keep trail cameras in place in nearly any environment.

Proof Research Introduces PXT Rifle Barrel Technology

Proof Research has launched Proof Exponential Twist (PXT), an advancement in rifling that promises to improve durability, accuracy and shootability. Further, Proof has backed this new technology with extensive military testing and research. Engineered to meet the demands of modern high-pressure ammunition, PXT is billed as delivering longer barrel life, improved consistency and enhanced performance.  

Ammo Analysis: So You Like 'em Heavy?

Phil Massaro discusses what might make someone opt for a heavy-for-caliber choice when taking on game.

New for 2026: Steiner eDiscovery 10x42 Binoculars with Integrated Camera

Steiner Optics has introduced the eDiscovery 10x42 binoculars, combining clarity and durability with a fully integrated 4K camera.

Interests



Get the best of American Hunter delivered to your inbox.