Walther P22 with 22SPARROW Suppressor

The 22SPARROW Suppressor is a suppressor made by SilencerCo.


This suppressor fits multiple .17 hmr, .22 lr, .22 mag, .22 wmr, 5.7x28 FN caliber handguns.

Store Description

The 22Sparrow is the first suppressor in the world to offer the patent pending Multi Part Containment (MPC) technology, which allows the 22Sparrow to be easily disassembled for cleaning and maintenance after heavy use.

Because the .22 LR round is not copper jacketed, molten lead and carbon debris will explode into the suppressor when the projectile exits the muzzle. After some time, it is possible for a .22 suppressor to fill completely with lead and become heavy and ineffective. To avoid this issue, .22 silencers must be disassembled for cleaning and regular maintenance.

Until Silencerco introduced the 22Sparrow, the only .22 silencers that could be disassembled for cleaning required a cleaning every 50 to 200 rounds. However, often the components of those suppressors would be fused together and unable to come apart. Competitor products on the market have baffles in their .22 silencers that must be removed by twisting the outer tube around the baffles and/or sliding the outer tube off of the baffles. When the lead and carbon debris adhere to the inner wall of the outer tube and fill the spaces between the baffles and the outer tube, there is simply too much buildup of fouling and lead to remove the outer tube in that manner.

Silencerco solved this maintenance issue with MPC technology and made it possible for shooters to disassemble the 22Sparrow easily after heavy use without the need of tools. MPC technology revolutionized take-apart suppressors by containing the lead and carbon debris to prevent the debris from reaching the outer tube. This innovative design is achieved by applying two tube halves before sliding the outer tube on the rest of the assembly. When disassembling, the outer tube can be easily removed, and the tube halves are free to pull away from the baffles without having to rotate or slide. Just pull off the tubes, clean the components, and reassemble.

22SPARROW Suppressor


  • Multi-Caliber Use
  • Full Auto Use
  • O-ring Engagement
  • Tax Stamp Protection

Store Specs


.22 lr

Additional Calibers .17 hmr
.22 mag
.22 wmr
5.7×28 FN

Multi Caliber Use The stainless steel 22Sparrow is rated and warrantied for use with all rimfire rounds, .22 diam and under such as .17 hmr and .22 mag. It is also rated for use with the 5.7×28 FN round.

Full Auto Use The 22Sparrow is rated for full auto .22 lr machine guns.


6.5 oz





Sound reduction


  • tested with Walther P22, CCI Standard Velocity, 70 degrees, 5100' elevation.


Alloy Steel
Heat Treated 17-4 PH Stainless Steel


Black Oxide
Magnesium Phosphate (Outer Tube)


½×28 threads



Thread Options

Don't engage o-ring Thread should be standard .5×28tpi Class 3A threads with a length of .400"

Engage o-ring Our innovative Sparrow O-ring engagement offers the additional advantage of keeping the muzzle threads of the host weapon clean and the suppressor is held secure with an o-ring placed inside the female threads to which the host weapon would thread. SilencerCo offers custom adapters for the Walther P-22, The SIG Mosquito, the GSG 1911/22 to take advantage of the o-ring engagement. Note: The 22Sparrow will thread on any standard .5×28 threads and any other silencer threaded in .5×28 will thread on our adapters. Minimum overall thread and o-ring engagement is .476".