The Maxim Defense MS-22 is a .22 LR rimfire suppressor that brings Maxim’s M-Kore baffle design to rimfire (Maxim Defense part no. MXM-48351). Its baffles carry integrated carbon cutters to scrape fouling that rimfire ammunition leaves behind. The tube and core are 7075 aluminum, and the can is fully user-serviceable, coming apart with common tools. It mounts by direct thread and has no barrel restrictions.

Key Specifications

• The caliber rating is .22 LR, a rimfire suppressor.
• Mounting is direct thread, with no adapter or piston required.
• Length is 5.92 inches.
• Weight is 3.52 ounces.
• Outer diameter is 1.00 inch.
• The tube and core are 7075 aluminum.
• The finish is anodized.
• Maxim lists no barrel restrictions for this model.
• The firing schedule is full-auto rated for .22 LR.
• Maxim lists a sound figure of 108.7 dB at the left ear.

Frequently Asked Questions

Is the MS-22 full-auto rated? Maxim lists the MS-22 as full-auto rated for .22 LR and states it has no barrel restrictions.

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.

Can I take it apart to clean it? Yes. Maxim designed it to be fully user-serviceable, and it disassembles with common tools. The integrated carbon cutters help clear fouling from the baffles.

Buy the Maxim Defense MS-22 .22 LR Rimfire Suppressor

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. Rimfire ammunition leaves a lot of residue, so a can that comes apart for cleaning earns its keep. Order through Maxim Defense‘s suppressors lineup and our Lubbock, Texas team will handle the transfer.