The GSL Technology Pill Box (brand part no. PB-100-SUP) is billed as the smallest suppressor available for the .22 LR cartridge, rated to reduce sound by 24 dB. GSL Technology built it as a last-ditch self-defense item using a special wipe rated for roughly fifty rounds before needing replacement, rather than a design meant for extended range sessions. The Pill Box favors shooters who want the smallest possible .22 LR suppressor footprint.

Key Specifications

• Rated for .22 LR ammunition.
• Reduces sound by 24 dB.
• Uses a replaceable wipe rated for approximately 50 rounds.
• Mounts via a 1/2×28 direct-thread connection.

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.

What caliber is it rated for? .22 LR.

How does it mount? A 1/2×28 direct-thread mount — it threads straight onto a .22 LR-threaded muzzle, with no quick-detach hardware.

Buy the GSL Technology Pill Box 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.