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

W H2026 09 Hardwarew3849 TAH 1797Leadredux
W H2026 09 Hardwarew3849 TAH 1797Leadredux

Hardware Review: Dead Air Nomad Ti OTB

Check out Frank Melloni's in-depth review on the Dead Air Nomad Ti OTB.

Shane Mahoney Receives AFWA Lifetime Achievement Award for Conservation Leadership

Shane Mahoney, president and CEO of Conservation Visions Inc., received the Association of Fish & Wildlife Agencies’ (AFWA) 2026 Lifetime Achievement Award at a September ceremony in Lancaster, Pa.

Colorado Voters Reject Right to Hunt and Fish Measure

On November 3, Colorado voters rejected Amendment 83, a proposed constitutional amendment that would have designated hunting and fishing as the preferred means of managing the state’s fish and wildlife populations. To pass, the amendment needed 55 percent of the vote or more. It fell about 10 percentage points short of that minimum.

The 8mm Mauser Family

The 8x57mm, also known as the 8x57 JS, the 7.92x57mm Mauser or the 8mm Mauser, has been with us since 1888, and has directly—or indirectly—brought us a wide array of cartridges which we hold dear. Let's take a closer look at that array.

2026 Federal Duck Stamp Winner Announced: A Synergy of Art and Conservation

The U.S. Fish and Wildlife Service announced in late September that Robert Hautman of Delano, Minn., won the 2026 Federal Duck Stamp Art Contest with an acrylic painting of a long-tailed duck pair (seen above at the official ceremony).

5 Keys To Make This Your Best Upland Season Ever

Tired of walking long distances and coming home empty-handed? Here are five keys to help boost your bag of birds this year.

Interests



Get the best of American Hunter delivered to your inbox.