# Sig Sauer MPX Copperhead K 9mm Tactical Pistol 4.5"

**Brand:** SIG Sauer
**Category:** Pistol Caliber Carbines
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.5"
- **Capacity:** 20 rounds
- **Finish:** Black
- **Weight:** 72 oz
- **Overall Length:** 22.3"
- **UPC:** 798681671779
- **SKU:** UCE3nOts3

## Description

The Sig Sauer MPX Copperhead K is a semi-automatic pistol in 9mm Luger (9x19 Para) with a 4.5-inch barrel, 20+1 capacity, and overall length of 14.50 inches. It weighs 4.5 lbs. The receiver is black anodized aluminum. Ambidextrous safety, black polymer grips, and M-Lok handguards. The sights are optic-ready. A Timney single-stage trigger is fitted.

### Key Specifications
- **Brand:** Sig Sauer
- **Model:** MPX Copperhead K
- **Caliber:** 9mm Luger (9x19 Para)
- **Barrel Length:** 4.5 inches
- **Capacity:** 20+1 rounds
- **Action Type:** Semi-Automatic
- **Weight:** 4.5 lbs.
- **Finish:** Black Anodized
- **Safety Style:** Ambidextrous 
- **Grips Material:** Black Polymer 
- **Sights Type:** Optic Ready

### Detailed Features:
The 4.5-inch barrel keeps the Copperhead K compact at 14.50 inches overall. The Timney trigger has a short reset and crisp break, which is a real upgrade over mil-spec triggers. M-Lok handguards make accessory attachment easy. The ambidextrous safety and controls work for either hand. At 4.5 lbs it's light for what it is. Optic-ready receiver accepts standard mounts.

## Frequently Asked Questions

**Q: What caliber is the Sig Sauer MPX Copperhead K?**

A: The MPX Copperhead K is chambered in 9mm Luger (9x19 Para).

**Q: What is the barrel length of the MPX Copperhead K?**

A: It has a 4.5-inch barrel.

**Q: How many rounds does the MPX Copperhead K hold?**

A: It has a 20+1 capacity.

**Q: Who makes the MPX Copperhead K?**

A: The MPX Copperhead K is made by Sig Sauer.

**Q: What type of firearm is the MPX Copperhead K?**

A: It is a semi-automatic pistol caliber carbine pistol with a black anodized aluminum receiver, M-Lok handguards, and ambidextrous safety.

**Q: Is the Sig Sauer MPX Copperhead K optic-ready?**

A: Yes. The receiver is optic-ready and accepts standard mounts.

**Q: Where can I buy the Sig Sauer MPX Copperhead K?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> I'm a big old ogre looking guy so i don't like how close my hand gets as you can see there.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=TriGqYpXueo&t=170s)

> It has a really low recoil and pulse probably the lowest of any pcc that i've tried.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=TriGqYpXueo&t=515s)

> The recoil impulse on the mpx is extremely light guns like the cmmg banshee also have a fairly light recoil i think this is a little bit lighter.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=TriGqYpXueo&t=545s)

> I think it delivers on the recoil recoil is extremely low accuracy is extremely high.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=TriGqYpXueo&t=890s)

> I like the collapsible brace that's real cool.
>
> — [Honest Outlaw](https://www.youtube.com/watch?v=TriGqYpXueo&t=906s)

## What Customers Say

*AI-generated insights from customer reviews*

The MPX Copperhead K draws strong reviews from shooters who know what they're buying. Accuracy is consistently praised. The quality of the optics-ready receiver and the Timney trigger combination gives it real precision for a pistol-format firearm. Build quality matches Sig's reputation, and the compactness at 4.5 lbs and 14.50 inches overall is genuinely useful in tight spaces.

Price is the most common friction point. The Copperhead K is at the expensive end of its category, and that generates comparison discussions with cheaper options. Some users note recoil as snappier than expected for a heavier-framed gun, which matters more for new shooters. Accessory and part sourcing for specific Copperhead configurations gets mentioned occasionally as a limiting factor.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $2100.99 |

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*Data from [GunsNation](https://gunsnation.com)*