# CMMG Banshee MK4 9mm 5in Gray

**Brand:** CMMG
**Category:** Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 5"
- **Finish:** Gray Cerakote
- **UPC:** 840442503819
- **SKU:** UCEnNb5z9

## Description

The CMMG Banshee MK4 is a semi-automatic AR-pattern pistol chambered in 9mm with a 5-inch barrel and a 1/2x28 threaded muzzle. It has a fixed ejector, ambidextrous controls, and ships with a 30-round magazine. The pistol wears a Gray Cerakote finish with tungsten-colored accents.

### Key Specifications
- **Brand:** CMMG
- **Model:** Banshee MK4
- **Caliber:** 9mm
- **Action:** Semi Auto
- **Capacity:** 30 rounds
- **Barrel Length:** 5 inches
- **Finish:** Gray Cerakote

### Detailed Features
- 5-inch barrel with a 1/2x28 threaded muzzle for a muzzle device or suppressor
- Ambidextrous controls for left- or right-hand operation
- Fixed ejector matched to the 9mm blowback action
- Includes a 30-round magazine for range use
- Optic-ready configuration for running a red dot instead of irons

The compact 5-inch barrel and AR-pattern controls keep the Banshee MK4 maneuverable while the threaded muzzle leaves room to add a muzzle device.

## Frequently Asked Questions

**Q: What caliber is the CMMG Banshee MK4?**

A: The Banshee MK4 is chambered in 9mm.

**Q: What is the barrel length of the Banshee MK4?**

A: It has a 5-inch barrel with a 1/2x28 threaded muzzle.

**Q: How many rounds does the Banshee MK4 hold?**

A: It ships with a 30-round magazine.

**Q: Who makes the Banshee MK4?**

A: CMMG makes the Banshee MK4.

**Q: What type of firearm is the CMMG Banshee MK4?**

A: It is a semi-automatic AR-pattern pistol with ambidextrous controls and a fixed ejector, finished in Gray Cerakote with tungsten-colored accents.

**Q: Where can I buy the Banshee MK4?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

CMMG's Banshee line, including this MK4 9mm pistol, has a following among shooters who want an AR-pattern pistol chambered in a pistol caliber rather than .223/5.56. Owners generally describe the blowback action as reliable once the gun is broken in, though a pistol-caliber AR can feel snappier than a rifle-caliber build of similar size.

Handling opinions vary with the short 5-inch barrel and pistol brace setup. Some shooters like the light, compact footprint for maneuvering in tight spaces, while others add a heavier buffer or different optic to balance the front-heavy feel of a threaded muzzle setup.

On value, the Banshee platform benefits from CMMG's own parts support and broad AR-pattern compatibility for grips, optics, and other accessories. Buyers who want a threaded 9mm AR pistol see it as a flexible platform, while some note that running it well takes more tuning than a standard rifle-caliber AR build.

## Pricing

**3 offers available**

| Vendor | Price |
|--------|-------|
| Shootingsurplus Com | $1544.71 |
| Gritrsports Com | $1549.99 |
| Buds Gun Shop | $1585.49 |

## Similar Products

- [CMMG Banshee MK4 9mm 5in Midnight Bronze](https://gunsnation.com/p/cmmg-banshee-mk4-9mm-5in-midnight-bronze/UCEnNb5yf)
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- [CMMG Banshee 9mm 5in Black](https://gunsnation.com/p/cmmg-banshee-9mm-5in-black/UCEGFyYXQ)
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- [CMMG Banshee MkGs 9mm 5in Black](https://gunsnation.com/p/cmmg-banshee-mkgs-9mm-5in-black/UCEnNb6Dr)
- [CMMG Banshee MK4 9mm 8in Armor Black](https://gunsnation.com/p/cmmg-banshee-mk4-9mm-8in-armor-black/UCEnNb5zG)

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