The K also features an updated M-Lok handguard which is available as accessories in multiple lengths for suppressor coverage.
Finally, the K is upgraded with the ultra smooth, ultra-fast Timney Trigger. If you are looking for the ultimate modular sub gun, look no further than the MPX K from SIG SAUER.
Caliber 9mm Luger
Model MPX K
Stock Finish Black
Action Semi-Automatic
Barrel Length Range 4.00″ to 4.99″
Sights None, Optic Ready
Capacity 35+1
Muzzle Threaded
Grips Black Polymer
Metal Finish Black Hardcoat Anodized
OAL 22.5″
Receiver Material Aluminum
Stock Description PCB Folding- folds left side
Stock Material Synthetic
Thread Pattern M13.5 x 1 mm
Trigger Timney
Twist 1:10″
Weight 5 lbs
Barrel Description Cold Hammer-Forged Carbon Steel
Search Code SIGMPX
Similar Items HGT9MM
Barrel Length 4.5″
Frequently Asked Questions – Sig MPX K Pistol 9mm, 4.5" Barrel, Folding Brace, Black, 35rd Sig Sauer
- How fast does this ship?
- Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
- Do I need registration?
- Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
- Is this legal in D.C.?
- Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
- Is the Sig MPX K Pistol 9mm, 4.5" Barrel, Folding Brace, Black, 35rd Sig Sauer suitable for me?
- This Sig MPX K Pistol 9mm, 4.5" Barrel, Folding Brace, Black, 35rd Sig Sauer is popular for uses like guns.
- Popular searches by customers