SIG MPX 8 for Sale
Browse Sig mpx 8 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The SIG MPX line was introduced by SIG Sauer to redefine the subgun and PCC categories with innovation and modularity. The MPX 8 variant offers a compact 8-inch barrel, ideal for close-quarters and tactical applications. It remains a top-tier choice for shooters in law enforcement, competition, and personal defense roles.
Why It's a Top Choice
- Short-stroke gas piston ensures cleaner, more reliable cycling
- Ambidextrous controls for full versatility
- Modular lower compatible with AR-style triggers
- Enclosed bolt design increases safety and durability
- Ideal size and weight for suppressed configurations
Key Variants
SIG MPX K
Designed for ultra-close-quarters work with a shorter 4.5-inch barrel and compact profile.
SIG MPX PCC
Optimized for competition with a 16-inch barrel and tuned, smooth operating system.
SIG MPX Copperhead
Built for discreet carry in ultra-short form with monolithic upper and minimal profile.
Competitor Comparison Table
| Feature | Sig Mpx 8 | CZ Scorpion Evo 3 | Kalashnikov KP-9 |
|---|---|---|---|
| MSRP | $2,000+ | $1,000+ | $1,000+ |
| Capacity | 30+1 | 20 or 30 | 30+1 |
| Weight | 6.1 lbs | 6.1 lbs | 6.6 lbs |
| Optics-ready | Yes | Yes | Yes |
| Trigger type | Single-stage AR-compatible | Mil-spec style | Standard AK-style |
| Notable pro | Superior recoil control and modularity | Affordable and easy to maintain | AK-style ruggedness |
| Notable con | Higher cost | Less refined trigger | Limited aftermarket trigger options |
Best Use Cases
- Personal defense
- Tactical training and duty use
- Pistol-caliber competition matches
- Home security
- SBR or suppressor platforms
FAQs
What is the barrel length of the Sig MPX 8?
The Sig MPX 8 features an 8-inch cold hammer-forged barrel, ideal for suppressed or compact use.
Can I use Sig MPX 8 for competition shooting?
Yes. The MPX 8 is popular in PCC divisions due to its low recoil and fast cycling.
How does the Sig MPX 8 differ from the MPX K?
The MPX 8 has a longer barrel and rail, offering increased velocity and sight radius over the MPX K.
Prefer nearby results? Toggle to search local listings.
Sig Sauer MPX 9mm Carbine--Used
$1,599.99
Sig Sauer MPX K (PMPX-4B-9-35)
$2,179.99
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