The Wise Arms Whisper .22 suppressor is a simple direct-thread rimfire can built on K-baffles machined from aircraft-grade aluminum (brand part no. WA-22WS-BLK). It is compatible with .22 LR, .22 Magnum and 17 HMR firearms and threads onto a 1/2×28 barrel. The tube is 1 inch in diameter and 5.75 inches long, and the whole can weighs only 3.5 ounces. Wise Arms lists an average noise reduction of 27 decibels. The Cerakote finish in Armor Black rounds out a light, practical can for a rimfire rifle or pistol.

Key Specifications

• Compatible calibers are .22 LR, .22 Magnum and 17 HMR, so one can covers three rimfire rounds.
• The thread is 1/2×28, the common rimfire muzzle thread for direct attachment.
• Length is 5.75 inches, compact on a rifle or a pistol.
• Diameter is 1 inch, slim enough for typical rimfire barrels and sights.
• Weight is 3.5 ounces, so it adds very little to the muzzle.
• The internals are aluminum K-baffles, made from aircraft-grade aluminum to keep weight down.
• The finish is Cerakote Armor Black, a durable, low-glare coating.

Frequently Asked Questions

How quiet is the Whisper .22? Wise Arms lists an average noise reduction of 27 decibels, its own figure for the suppressor.

Can I use it on a 17 HMR? Yes. Wise Arms lists the Whisper as compatible with .22 LR, .22 Magnum and 17 HMR firearms.

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 Wise Arms Whisper .22 LR Rimfire 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 Wise Arms‘s suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. At 3.5 ounces, it is an easy can to leave on a rimfire trainer full time.