The Maxim MKIV-SD (brand part no. MXM-48352) is a complete Ruger Mark IV .22 LR pistol built as an integral suppressor platform, constructed with a 7-inch-long, 1-inch-diameter suppressor tube permanently integrated into the pistol. Maxim Defense pairs the suppressed pistol with an optic-ready slide and a 10-round magazine, favoring rimfire shooters who want a factory-integrated suppressed pistol rather than a separate host and can.

Key Specifications

• Built on the Ruger Mark IV platform, chambered in .22 LR.
• Integrates a 7-inch-long, 1-inch-diameter suppressor tube.
• Wears a 5.95-inch barrel inside the suppressor housing.
• Feeds from a 10-round magazine.
• Built optic-ready for a red dot or similar sight.

Frequently Asked Questions

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

What pistol is it built on? The Ruger Mark IV .22 LR platform.

Is the suppressor removable? No. This is an integrally suppressed platform; the suppressor is permanently affixed as part of the complete firearm, not a separate direct-thread or QD-mounted can.

Buy the Maxim MKIV-SD Suppressed Pistol

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 Maxim Defense Industries‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.