Maxim Defense MXM48217 MS-9 9mm 1.375" Black Aluminum/Stainless Steel

The Maxim Defense MS-9 is a modular 9mm suppressor built for shooters who need flexibility across pistols and pistol-caliber carbines without compromise. Whether you're running a compact PCC, a duty pistol, or a race gun, this suppressor lets you configure it in a short or long setup to match your mission—then actually clean it without a tech degree. The MS-9 ships with a 1/2-28 piston mount and pairs a 7075 aluminum tube with 7-series stainless steel baffles that can handle whatever power level you're throwing at it, from subsonic loads to full-bore ammunition.

What makes the MS-9 stand out is its no-nonsense modularity. You're not locked into one length or one platform. The short configuration runs 5.375 inches and weighs 8.7 ounces; go long and you get 7.5 inches and 10.5 ounces. Both are equally effective on pistols or PCCs—no barrel length restrictions, no rate-of-fire penalties. That means one suppressor can adapt to a short-barreled pistol one day and a 16-inch PCC the next. The stainless baffles are a practical detail often overlooked: they mean you can actually disassemble and clean your can with basic tools instead of waiting for a gunsmith. The DLC Cerakote finish handles shooting and cleaning without fussing.

The MS-9 is purpose-built for serious users who treat suppressors as tools, not novelties. If you're investing in a can that needs to work hard across multiple guns and actually be maintained, this is the kind of intelligent design that pays off downrange.

Key Features

• Modular short (5.375") and long (7.5") configurations for adaptability across platforms
• Compatible with both pistols and pistol-caliber carbines with no barrel length restrictions
• Stainless steel baffles designed for easy disassembly and field cleaning
• Ships with 1/2-28 piston mount for standard 9mm hosts
• DLC Cerakote finish for durability and corrosion resistance
• Lightweight aluminum tube (7075) paired with stainless internals

Specifications

Frequently Asked Questions

Can I use the MS-9 on both a pistol and a PCC?

Yes. The MS-9 has no barrel length restrictions and works equally well on pistols and pistol-caliber carbines, regardless of rate of fire. The modular short and long configurations let you optimize it for each platform.

What mount comes with the MS-9?

The suppressor ships with a 1/2-28 piston mount, which is the standard direct-thread interface for most 9mm pistols and PCCs.

How do I clean the MS-9?

The stainless steel baffles allow you to disassemble the suppressor using common garage tools, so you can maintain and clean it yourself rather than sending it out for service.

What's the difference between the short and long configurations?

The short version runs 5.375 inches at 8.7 ounces; the long version is 7.5 inches at 10.5 ounces. Both are modular and can be swapped depending on your application and platform.