Description

Trusted by professionals around the globe, the MPX K from SIG SAUER delivers exceptional reliability and durability through its closed-bolt gas piston system. Like all MPX models, the K is fully modular, supporting various handguard and barrel configurations and is suppressor-ready right out of the box.

The latest iteration of the MPX K includes the SIG PCB folding brace, enabling the firearm to fold into a compact form while remaining fully operable in the folded position. It also features an upgraded M-Lok handguard, available in multiple lengths to accommodate suppressor coverage.

Enhancing performance further, the MPX K now comes equipped with the ultra-smooth, lightning-fast Timney Trigger—co-developed by Timney and SIG. This trigger combines Timney’s renowned precision with the rugged reliability required for sub-gun platforms.

For those seeking the pinnacle of modular sub-gun design, the MPX K stands out as the ultimate choice.

Specifications:

– Model: MPX K
– Caliber: 9mm
– Hand: Right Hand
– Finish: Black
– Action: Semi-Auto
– Capacity 35rd
– Barrel Length: 4.5in
– Overall Length: 22.25in
– Height: 8 in
– Overall Width: 2.4 in
– Twist Rate: 1:10
– Weight: 5 lbs
– Operating System: Gas Piston
– Barrel Material: Carbon Steel
– Threads: M13.5 x 1mm
– Stock Type: PCB
– Grip Type: Polymer
– Trigger Shape: Flat
– Forend Type: Alloy
– Accessory Rail: M-Lok
– Mag Type: MPX
– Mags Included: (1) 35-Round Polymer Mag
– Receiver FInish: Hard Coat Anodized

Browse for more 9mm Sig Sauer.

Rebates for Sig Sauer brand

Exp. date: 01.09.2026
Buy a New Applicable SIG SAUER Handgun Between 06/01/26 and 08/31/26, Receive One (1) SIG SAUER FOXTROT-EDC COMPACT Flashlight. (SKU: SOFEC002)
*Purchases of all SIG SAUER P365, P320, M17-M18, P210, P211, P220, P226, P229 and 1911 models are included in this offer. All other SIG SAUER Handguns are excluded from this promotion.

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