The GSL Technology FN 57-22 (brand part no. FN-5722-SUP) is a suppressor originally developed for FN platforms, built with 10x1mm threads and a 1/2×28 adaptor for compatibility with .22-caliber platforms. Independent testing rates the FN 57-22 at 32 dB of sound reduction. The FN 57-22 favors shooters running FN pistols chambered in .22 who want a purpose-matched can.

Key Specifications

• Delivers 32 dB of sound reduction.
• Threaded 10x1mm, with a 1/2×28 adaptor included for .22-caliber platforms.
• Originally developed for FN platforms.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

How much sound reduction does it offer? 32 dB.

How does it mount? It mounts via direct thread (10x1mm, with a 1/2×28 adaptor included for .22-caliber platforms), not a quick-detach mount.

Buy the GSL Technology FN 57-22 Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through GSL Technology‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.