GSL Flea .22LR Rimfire Suppressor

Description

GSL Flea .22LR Rimfire Suppressor

The GSL Flea .22LR suppressor delivers real rimfire sound suppression in one of the smallest packages GSL builds, and that’s the whole point for a shooter who wants a quieter range session without adding bulk to the muzzle. At 2.3 oz. and just 3.625 inches long, the Flea mounts via a direct 1/2″-28 thread and cuts report by up to 29 dB, since GSL built it around a compact aluminum core rather than the longer tube used on its Woodland sibling. That size makes it a natural fit for subcompact .22 LR pistols, though it works equally well on a rimfire rifle since GSL rates the Flea for .22 LR, .22 WMR (.22 Magnum), and .17 HMR hosts.

Because the housing carries a hard coat anodized finish, the Flea holds up to repeated cycles of rimfire fouling without breaking down, which matters given how dirty .22 ammunition tends to run compared to centerfire loads. The GSL Flea .22LR suppressor carries no full-auto rating, so GSL built it specifically for semi-auto and bolt-action rimfire platforms rather than sustained-fire use.

Key Features — GSL Flea .22LR suppressor

• 29 dB sound reduction rating
• 2.3 oz. total weight
• 3.625″ overall length, 1.00″ diameter
• Direct thread mount, 1/2″-28 thread pitch
• Rated for .22 LR, .22 WMR (.22 Magnum), and .17 HMR
• Compatible with both pistol and rifle hosts
• Hard coat anodized aluminum construction
• Not rated for full-auto fire

 

Why This Product Stands Out

Most rimfire suppressors chase either weight or sound reduction, and the Flea leans hard toward weight since GSL trimmed the tube down to 3.625 inches without giving up a usable 29 dB of reduction. That tradeoff matters most on a subcompact .22 LR pistol, where a longer can throws off the balance of the gun and makes holstering or concealment impractical. Because the Flea threads on directly with no separate mount or adapter, setup stays simple: thread it on, torque it down, and it’s ready to run.

The aluminum body keeps the whole package light on the muzzle, which helps sight picture stay consistent on a pistol slide instead of dragging the front end down. GSL builds the Flea to handle the fouling that comes standard with rimfire ammunition, coating the housing in a hard coat anodized finish rather than leaving raw aluminum exposed to carbon buildup. For a shooter who already runs a GSL Woodland or Tomcat on a rifle, the Flea fills the gap as the dedicated pistol-and-light-rifle option in the same lineup.

Ideal Use Cases

• Rimfire pistol suppression for range and plinking use
• Suppressed rimfire rifle work on .22 LR, .22 WMR, or .17 HMR hosts
• Small-game and pest control hunting
• Training and familiarization sessions where reduced report helps new shooters focus on fundamentals

 

Technical Specifications

 

Compatibility Information

Suppressor Compatibility: The Flea threads directly onto any host barrel cut to a 1/2″-28 muzzle thread, and GSL rates it for .22 LR, .22 WMR (.22 Magnum), and .17 HMR — on both pistol and rifle hosts. The Flea needs no separate mount or adapter, since it mounts by direct thread alone.

NFA COMPLIANCE NOTICE

This item is regulated under the National Firearms Act (NFA). Purchase requires completion of ATF Form 4, and compliance with all federal, state, and local regulations.

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Manufacturer: GSL Technology, Inc. | Model: Flea | Type: Suppressor | Caliber: .22 LR / .22 WMR (.22 Magnum) / .17 HMR | UPC: 697937047644 | SKU: SFL100

THIS ITEM TRANSFERS ON AN ATF FORM 4 THROUGH TX ARMS OR YOUR LOCAL FFL/SOT DEALER. ALL NFA RULES AND REGULATIONS APPLY.