Product Overview For SIG Sauer MODX-45 Suppressor
The SIG Sauer MODX-45 is a lightweight, highly versatile modular pistol suppressor designed primarily for .45 ACP platforms. Utilizing advanced 3D-printed titanium components, it allows users to customize its length, weight, and sound suppression performance depending on their operational or recreational priorities.
Key Features of SIG Sauer MODX-45 Suppressor
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Modular Baffle Design: Comprised of user-configurable, 3D-printed titanium baffles that can be added or removed to adjust overall length and weight.
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Adjustable Dimensions & Sound: Length is adjustable from 3.25 inches to 9.25 inches, weight ranges from approximately 5 ounces to 9 ounces, and sound output scales from 133dB to 149dB.
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Points of Impact Adjustment: Features 21 points of impact adjustment for precise tuning and alignment.
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Included Accessories: Comes packaged with two direct-thread pistons (.578×28 and M16x1LH) alongside a fixed-barrel spacer for use on pistol-caliber carbines.
Specifications
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Caliber: .45 Auto (.45 ACP)
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Overall Length: 9.25 inches (maximum configuration)
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Diameter: ~1.35 to 1.38 inches
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Weight: ~8.75 oz to 11 oz (depending on configuration)
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Material: Titanium baffles / Stainless steel components
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Finish: Black DLC
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Mount Style: Direct thread pistons (.578″x28 TPI and M16x1LH)
Benefits of using the SIG Sauer MODX-45 Suppressor
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Lightweight Titanium Build: Minimizes added weight at the end of a pistol barrel to maintain natural handling and cycling.
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Customizable Profile: Lets the user shorten the setup when a compact footprint takes priority over maximum sound reduction.
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Multi-Platform Adaptability: Out-of-the-box inclusion of multiple popular imperial and metric pistons, plus a fixed-barrel spacer, ensures seamless transition between handguns and carbines.
Suitable Applications
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Handgun Suppression: Ideal for lowering the decibel levels of .45 ACP service and tactical pistols.
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Pistol-Caliber Carbines (PCC): Easily adapted for submachine guns and carbines using the included fixed-barrel spacer.
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Recreational & Training Range Use: Reduces acoustic report for more comfortable indoor or outdoor target shooting.
Important Information
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NFA/Regulated Item: Suppressors are subject to strict federal, state, and local laws (such as ATF regulations in the United States or equivalent local licensing internationally). Buyers must comply with all legal transfer requirements, background checks, and tax stamps before taking possession.
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Maintenance: Regular cleaning of modular titanium baffles is recommended to prevent carbon lock and maintain smooth disassembly.
Summary
The SIG Sauer MODX-45 combines lightweight 3D-printed titanium construction with complete modularity, giving shooters total control over length, weight, and acoustic signature. Review local NFA compliance rules and verify thread pitch compatibility before purchasing.




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