Sig Sauer Silencer Mdx-9 Ss Modular

Sig Sauer MDX-9 SS Modular Silencer - Premium Sound Suppression for Firearms

Sig Sauer
SKU:
120913579
|
UPC:
798681613137
$999.99
Current Stock:
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Product Overview

The Sig Sauer MDX-9 SS is a modular 9mm suppressor built on titanium construction for shooters who want real flexibility in how their can performs. Unlike fixed designs, the MDX-9's baffle system lets you reconfigure it on the fly—swap baffles in or out to dial in the trade-off between sound suppression and overall length or weight that fits your mission that day. Whether you're running a tight subgun setup or prioritizing maximum sound reduction at the range, this suppressor adapts to your needs without swapping hardware.

The MDX-9 ships ready to work with common 9mm platforms. You get two pistons in the box—both 1/2x28 RH and M13.5x1 LH—so you can thread it onto most modern 9mm pistols and carbines right away. Sig includes a fixed barrel spacer for carbine use, too. The design goes beyond function: the exterior doubles as wrench flats, so you can field-strip and reconfigure the can without dedicated tools.

With 21 points of impact adjustment built in, you maintain point-of-aim consistency as you reconfigure the baffle stack. The titanium construction keeps weight down even when you're running the full baffle complement, and the modular approach means you're not stuck with one rigid suppressor—you've got one that grows or shrinks with your needs. This is the kind of suppressor that rewards understanding how your 9mm shoots and what you actually need from it on any given range session or hunting trip.

Key Features

  • User-configurable modular baffle design—customize for length, weight, and sound performance
  • Titanium construction for lightweight durability
  • Includes both 1/2x28 RH and M13.5x1 LH pistons for broad 9mm compatibility
  • Fixed barrel spacer for carbine-length firearms
  • 21 points of impact adjustment to maintain zero during reconfiguration
  • Exterior wrench flats for field disassembly and reconfiguration without tools

Specifications

Caliber9mm
MaterialTitanium
Thread Pitches Included1/2x28 RH, M13.5x1 LH
Design TypeModular baffle system
Impact Adjustment Points21
Included AccessoriesFixed barrel spacer, two pistons (1/2x28 RH and M13.5x1 LH)

Frequently Asked Questions

What 9mm firearms is the MDX-9 SS compatible with?

The MDX-9 works with most 9mm firearms that have a threaded barrel in either 1/2x28 RH or M13.5x1 LH pitch. Sig lists direct compatibility with the MPX, P365, P365XL, P226, P229, P320, M17, M18, P938, and SP2022 (all with threaded barrels). Since aftermarket threaded barrels exist for many other platforms, check with your firearm's manufacturer or barrel maker to confirm thread pitch compatibility.

Can I change how the suppressor performs without replacing it?

Yes—that's the whole point of the modular baffle design. You can reconfigure the baffles to adjust the balance between sound suppression and overall length or weight. The exterior wrench flats let you field-strip and reassemble it without special tools.

What's included in the box?

The MDX-9 ships with two pistons (1/2x28 RH and M13.5x1 LH), a fixed barrel spacer for carbine use, and the titanium suppressor body with modular baffles.

Does reconfiguring the baffles affect my point of aim?

The MDX-9 features 21 points of impact adjustment, which means the design allows for zero maintenance even as you change the baffle configuration. However, always verify your zero after any suppressor reconfiguration.

Additional Information

Firearm Shipments:

To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.

We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.

We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.

Email: [email protected]

  • Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
  • The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
  • The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
  • Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
  • Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
  • Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.