Description
The New SIG MPX K is a compact, gas-operated 9mm pistol-caliber carbine from SIG Sauer. It features a short-stroke piston system for reliable, clean operation and a monolithic upper receiver machined from 7075-T6 aluminum with a hard-coat anodized finish. This model is designed for suppressor use and is compatible with a wide range of MPX accessories and aftermarket triggers, offering exceptional modularity in a compact package.
Key Features
- Short-stroke gas piston system reduces fouling and enhances reliability.
- Monolithic upper receiver machined from 7075-T6 aluminum for maximum rigidity.
- Hard-coat anodized finish provides superior corrosion and abrasion resistance.
- 4.5-inch cold hammer-forged barrel with a 1/2×28 thread pitch for suppressors.
- Compatible with standard AR-style fire control groups and MPX-specific accessories.
Specifications
| Caliber / Type | 9mm Pistol-Caliber Carbine |
|---|---|
| Material | 7075-T6 Aluminum Upper, Steel Barrel |
| Finish | Hard-Coat Anodized |
| Compatibility | SIG MPX Platform Parts & AR Triggers |
| Weight | Approx. 4.5 lbs (unloaded) |
The SIG MPX K’s short-stroke piston system is a key engineering advantage, diverting gas away from the bolt carrier to keep the action cleaner and cooler than direct blowback designs. This enhances reliability, especially during rapid fire or suppressed use. Chambered in 9mm, it offers manageable recoil and shares magazine compatibility with other SIG 9mm platforms, making it a practical choice for training, competition, or home defense.
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