Maxim Defense MXM48217 MS-9 9mm 1.375" Black Aluminum/Stainless Steel
Maxim Defense Industries
The Maxim Defense MS-45 is a modular 45 ACP suppressor built for shooters who value flexibility and control over their setup. Whether you're running it on a compact pistol, a full-size 1911, or a 45 ACP PCC (pistol caliber carbine), this suppressor adapts to your needs—no barrel length restrictions, no rate-of-fire limitations. The MS-45 ships with a .578 x 28 piston mount and lets you choose between a short configuration (6.53 inches, 10 oz) or a long configuration (8.64 inches, 12 oz) depending on whether you're prioritizing compact carry or maximum sound reduction.
Construction matters when you're investing in a suppressor, and Maxim Defense didn't cut corners. The core is 17-4 stainless steel with a 7075 aluminum tube, finished in hard DLC (Diamond-like coating) for durability and corrosion resistance. The real kicker: stainless steel baffles mean you can actually clean this thing without guilt. Unlike suppressors that discourage maintenance, the MS-45 disassembles easily with standard garage tools, so you can keep it running and performing long-term.
If you shoot 45 ACP across multiple platforms or simply prefer a suppressor that doesn't force you into one-trick-pony compromises, the MS-45's modularity and build quality make it worth the investment. It's the kind of tool that earns its place in a serious shooter's kit.
| Caliber | .45 ACP |
| Mount | .578 x 28 piston (included) |
| Outer Diameter | 1.375 inches |
| Length (Short) | 6.53 inches |
| Length (Long) | 8.64 inches |
| Weight (Short) | 10 oz |
| Weight (Long) | 12 oz |
| Core Material | 17-4 Stainless Steel |
| Tube Material | 7075 Aluminum |
| Finish | DLC (Diamond-like Coating) |
Yes. The MS-45 is designed for .45 ACP platforms with no barrel length restrictions, so it works on pistols, 1911s, and 45 ACP PCCs alike.
The MS-45 ships with a .578 x 28 piston mount included.
Yes. The stainless steel baffles and modular design allow you to disassemble the suppressor using common garage tools, making routine cleaning and maintenance straightforward.
The short configuration is 6.53 inches and weighs 10 oz; the long configuration is 8.64 inches and weighs 12 oz. Choose short for compact setups and long for maximum sound reduction. Both use the same .578 x 28 mount.