The SIG Sauer MODX-45 is a modular, titanium-core suppressor designed for use with .45 ACP. It features configurable, segmented titanium baffles and an exterior that doubles as wrench flats to simplify maintenance and reconfiguration. The unit ships with both .578×28 and M16x1LH pistons and includes a fixed spacer for carbine use. The MODX-45 is intended for shooters who want to tailor length, weight, and sound performance to their application.

Key Specifications

• The suppressor is chambered for .45 ACP.
• The core construction uses titanium with stainless steel components for a lightweight, durable assembly.
• The overall length is listed as 9.25 inches and is also shown as configurable between 3.25 and 9.25 inches in supplied data.
• The exterior diameter is 1.38 inches.
• The listed weight is 8.75 ounces.
• Included thread/piston options are .578×28 and M16x1LH for direct-thread attachment.
• The NFA attachment type is Direct Thread.
• The package includes 2 pistons to accommodate the supplied thread patterns.
• The suppressor features 21 points of impact adjustment as noted in the manufacturer information.
• Manufacturer notes indicate the MODX-45 is multi-caliber capable with accessory pistons and can be used with select 9mm/.40S&W pistons per supplied data.

Engineered for configurable, lightweight suppression, the MODX-45 combines titanium construction and modular baffle architecture to let users trade length and weight against sound performance. Its included piston options and carbine spacer make it a versatile choice for shooters who require adaptable suppression for both duty-style pistols and carbine platforms.