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Most pistol suppressors make you pick a lane: quiet or compact. The Sig Sauer MODX-45 refuses to choose. Its core is a stack of seven segmented, 3D-printed titanium baffles plus an encapsulator, and every one of those baffles is user-removable. Run the full stack at 9.25 inches when you want the deepest sound reduction, or pull baffles down to a stubby 3.25 inches when you need something short on a home defense pistol or a carbine that already wears a long barrel. Sound performance scales with length, so you get to decide where the sweet spot is for each setup.
The MODX-45 weighs a feathery 8.75 ounces fully assembled, and around 5 ounces in its shortest configuration. That matters more on a pistol than almost anywhere else, since a heavy can drags the muzzle down and can throw off cycling on tilting-barrel designs. The segmented exterior isn't just for looks either, those flats double as wrench surfaces, so taking it apart for cleaning doesn't turn into a wrestling match. And with .45 ACP being a naturally subsonic round in most standard loads, this can does its best work without needing specialty ammo.
Sig ships this one ready to work. You get both a .578×28 piston and an M16x1LH piston, which covers the two most common .45 thread patterns without a trip back to the accessories page. A fixed barrel spacer is included for running it on pistol caliber carbines, and 21 points of impact adjustment let you dial in where your rounds land. Add accessory pistons and the MODX-45 becomes a multi-caliber tool, happily handling 9mm and .40 S&W alongside .45 Auto, which makes it an easy pick if you want one can to rotate across several hosts.
Each baffle is individually numbered, so reassembly after a cleaning session is simple and repeatable. It's a thoughtful, well-executed design from a company that clearly listened to what people wanted from a big-bore pistol can.
Yes, that's the whole point of the design. The MODX-45 uses seven removable titanium baffles, so you can run it anywhere from 3.25 inches up to the full 9.25 inches. Sound suppression ranges from roughly 133 dB in the full configuration to about 149 dB at its shortest, so you trade some quiet for a much smaller package. Each baffle is numbered, which makes reassembly quick and consistent.
It will. While it ships set up for .45 ACP, the MODX-45 is multi-caliber capable and can run 9mm and .40 S&W with the appropriate accessory pistons, sold separately. That flexibility makes it a solid choice as a do-it-all pistol can if you own hosts in multiple calibers.
Yes. Sig includes a fixed barrel spacer in the box specifically for carbine use. Since carbines have fixed barrels rather than the tilting barrels found on most pistols, the spacer replaces the booster function so the suppressor runs properly on those hosts.
You will need a threaded barrel in either .578×28 or M16x1LH to mount the MODX-45, and both pistons for those patterns come included. Suppressor-height sights are a smart add on most pistols since the 1.38 inch tube will block a standard sight picture. Many popular .45 pistols have factory threaded barrel options available.
| UPC | 798681613120 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MODX-45 |
| ATF Type | Silencer |
| Barrel Length | 7.5" |
| Caliber/Gauge | .45 ACP |
| Color | Gray |
| Length | 12 |
| Model | |
| Package Height | 2.8 |
| Package Width | 5.9 |
| Product Type | Suppressor |
| Shipping Weight | 1.5 |
| Style | Direct Thread |
| Thread Pattern | .578"x28/M16x1LH |
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