The Sig Sauer MODX-9 (brand part no. MODX9) is a 9mm direct-thread suppressor measuring 7.5 inches long, compatible with 7.5-inch barrels. Sig Sauer threads the MODX-9’s mount to accept both 1/2-28 and M13.5x1mm LH patterns, covering a wide range of 9mm host firearms. The MODX-9 favors 9mm shooters who want a Sig-built direct-thread can with dual thread-pattern compatibility.

Key Specifications

• Chambered for 9mm ammunition.
• Measures 7.5 inches long.
• Compatible with barrels around 7.5 inches long.
• Threaded to accept both 1/2-28 and M13.5x1mm LH patterns.
• Built from titanium with fully modular, reconfigurable baffles.
• Weighs about 8 ounces and measures 7.5 inches in the full configuration.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it's a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber is it rated for? 9mm.

What thread patterns does it accept? Both 1/2-28 and M13.5x1mm LH.

Buy the Sig Sauer MODX-9 Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4 and transfer through a licensed NFA (SOT/Class 3) dealer, with no federal transfer tax and an extended federal approval wait before delivery. Order through Sig Sauer‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.