How to clean a rimfire suppressor: intervals, methods and what not to do
Product links go to retailers and may be affiliate links; we may earn a commission at no cost to you. Prices as seen Oct 2026 and change often. Affiliate disclosure
We haven't tested this hands-on yet. Everything below comes from manufacturer specs, regulations and published sources, cited inline. Prices are maker MSRPs as listed in October 2026 unless noted.
How often
SilencerCo recommends cleaning the Sparrow 22 about every 1,000 rounds, and more often with especially dirty or lead-heavy ammo [1] [2]. Rimfire ammo is dirty: lead, lube and unburned powder build up fast, so a can that won't come apart gets heavier and harder to service.
The process (user-serviceable cans)
- Make sure the rifle is unloaded, then remove the can.
- Disassemble per the manual. On the Sparrow, the back cap unscrews, the tube slides off, and the core separates [1].
- Scrape heavy deposits, then soak or wipe the internals with a non-corrosive solvent [1].
- Don't put the outer tube in solvent or an ultrasonic cleaner if your manual says not to (the Sparrow's says not to) [1].
- Dry fully, lightly grease the threads if the manual says so, and reassemble.
Common mistakes
- Using harsh chemical dips on aluminum parts. Read the material list in the manual.
- Over-tightening the can on a carbon-fouled thread.
- Ignoring the rifle: suppressed .22s also foul the action faster. See rimfire cleaning.
Choosing a can or host? Best suppressor hosts · how to buy a suppressor in 2026. Shooting near others still calls for ear plugs Check price on Amazon.
Our range results (coming soon)
This box will hold our own groups, chronograph data and photos for this topic once we've shot and recorded them. Until then, every accuracy number on this page comes from the published source cited next to it. We have not tested these rifles or products hands-on for this article.
FAQ
How often should I clean a .22 suppressor?
SilencerCo recommends about every 1,000 rounds for the Sparrow 22, more often with dirty ammo.
Can I put my can in an ultrasonic cleaner?
Only if the manual allows it. SilencerCo's Sparrow manual says not to use solvent or ultrasonic cleaning on the outer tube.
What about sealed rimfire cans?
Sealed cans can't be properly cleaned. That's why most current .22 suppressors are user-serviceable.
Sources
Confidence: maker specs and prices are high confidence as of the date seen; forum and owner reports are low–medium confidence and labeled as such.
Not affiliated with Sako/Tikka, CZ, Bergara, Ruger, Savage or any retailer. We have not tested products hands-on for these guides; figures come from cited sources. Affiliate disclosure · Privacy · Terms · Rimfire Builds is operated by Tomahawk Designs LLC, Utah · [email protected]