The SilencerCo Sparrow 22 is a .22 caliber rimfire suppressor rated up to 5.7x28mm (SilencerCo part no. SU75). It is made of stainless steel with a black finish, a sturdy body for the dirty, high-volume shooting that rimfire suppressors see. At 5.08 inches long, it adds little length to a rifle or pistol. It works with SilencerCo Delta adapters, and a 1/2-28 spacer comes in the box for the most common rimfire barrel thread. It suits a plinking rifle, a rimfire pistol or a 5.7x28mm host that sees a lot of rounds.

Key Specifications

• It is a .22 caliber rimfire suppressor, built for .22 LR and similar rimfire hosts.
• The rating reaches 5.7x28mm, which extends it beyond rimfire to that small centerfire cartridge.
• Length is 5.08 inches, compact on a rifle or pistol.
• The body is stainless steel, a tough material for rimfire fouling.
• The finish is black, a low-profile look on most hosts.
• It is compatible with SilencerCo Delta adapters for other mounting needs.
• A 1/2-28 spacer is included, matching the most common rimfire barrel thread.

Frequently Asked Questions

Which cartridges is the Sparrow 22 for? It is a .22 caliber rimfire suppressor rated up to 5.7x28mm.

What mounting parts come with it? A 1/2-28 spacer is included, and the suppressor works with SilencerCo Delta adapters.

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 SilencerCo Sparrow 22 Rimfire Suppressor, .22 LR to 5.7x28mm

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 SilencerCo‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.