The JK Armament 105 RFX .22 caliber suppressor in black is one of the smallest and lightest rimfire cans on the market, built for rimfire rifles and pistols (JK Armament part no. JK105RFX22). JK describes it as a heavier-duty version of its 105 VERSAX, with more user-configurable baffles and enough toughness for hotter cartridges like 5.7x28mm and .22 WMR. Add or remove baffles with no special tools to settle on the length and suppression level you want. It is a practical choice for a plinking rifle, a rimfire pistol or a trainer.

Key Specifications

• The rated cartridges are .22 LR, .22 Mag, .17 HMR, .17 Mach 2, .17 WSM, .22 Hornet and 5.7x28mm, a wide list for one rimfire can.
• JK Armament lists no minimum barrel length for any of those cartridges.
• Length is 1.7 to 5.7 inches, depending on how many baffles you install.
• Weight is 1.1 ounces in the micro configuration and 3.5 ounces in full configuration.
• It comes with nine .22 caliber 7075 aircraft-grade aluminum baffles, which is what makes the length adjustable.
• The included mount is a JK 105 LT thread mount in 1/2×28, with a 1.3-inch tube and an RFX flash reducer end cap in the kit.
• JK Armament backs it with its Unconditional Unlimited Lifetime Guarantee.

Frequently Asked Questions

What can I shoot through the 105 RFX? JK Armament rates it for .22 LR, .22 Mag, .17 HMR, .17 Mach 2, .17 WSM, .22 Hornet and 5.7x28mm, with no minimum barrel length listed.

Can I change its length? Yes. It is fully modular, so you add or remove baffles without specialized tools. It runs from 1.7 inches in its shortest configuration to 5.7 inches with all nine baffles.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

Buy the JK Armament 105 RFX .22 Caliber Suppressor, Black

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through JK Armament‘s suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.