Sig Sauer Silencer MDX-45 SS Modular Suppressor
$999.99
The Sig Sauer Silencer MDX-45 SS is a modular suppressor purpose-built for .45 Auto pistols and carbines that gives you real control over how your rig performs. Instead of being locked into one fixed length and sound signature, this suppressor lets you add or remove titanium baffles to dial in your priorities—whether that's maximum sound reduction at the range or compact size for carry and truck guns. The fully modular design means you're not stuck with a one-size-fits-all compromise.
Built from 3D-printed titanium baffles and stainless steel construction, the MDX-45 delivers the durability you need for serious shooting without unnecessary weight. The direct-thread design keeps things simple, and Sig includes both a .578x28 and M16x1 LH piston in the box, so you can mount it on most common .45 platforms right out of the box. The modular baffle system gives you up to 21 impact adjustment points, letting you fine-tune fit and performance to your specific host gun.
This is a suppressor for shooters who understand that one gun rarely does everything the same way. Whether you're running it on a defensive pistol, a range toy, or an AR-pistol in .45, the ability to reconfigure baffles means the MDX-45 adapts to your mission instead of forcing you to adapt to it.
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.
