# CMMG Banshee MK4 5.7x28mm 8" Semi-Auto Pistol - 32-Round

**Brand:** CMMG
**Category:** Pistol Caliber Carbines
**Caliber:** 5.7x28mm

## Specifications

- **Caliber:** 5.7x28mm
- **Barrel Length:** 8"
- **Capacity:** 32 rounds
- **Weight:** 73.6 oz
- **UPC:** 810144723716
- **SKU:** UCEGJAhKW

## Description

The CMMG Banshee MK4 in 5.7x28mm is a semi-automatic pistol with an 8" barrel, 32-round capacity, 4.6 lb weight, and 23.7" overall length. It runs the Radial Delayed Blowback system, which handles the 5.7x28mm cartridge cleanly. Cycling is smooth and recoil stays light even at the higher velocities this caliber produces. The barrel is 4140CM steel with a salt bath nitride finish. Upper receiver is Billet 6061 T6 aluminum; lower is Mk4 Forged 7075 T6 aluminum. The CMMG ZEROED Linear Compensator comes standard, reducing muzzle rise during rapid fire. Charging handle is ambidextrous. The 32-round capacity is one of the higher counts in the pistol-caliber category, which suits the high-velocity, lower-recoil nature of the 5.7 round. Finish is black.

### Key Specifications:
- **Caliber:** 5.7x28mm
- **Barrel Length:** 8 inches
- **Capacity:** 32 rounds
- **Weight:** 4.6 lbs
- **Length:** 23.7 inches
- **Condition:** New in Box
- **Finish Color:** Black
- **Manufacturer:** CMMG
- **Model Number:** Banshee MK4

## What Customers Say

*AI-generated insights from customer reviews*

The 5.7x28mm caliber is the main draw for most Banshee MK4 buyers. The flat trajectory, low recoil, and high velocity make it interesting for personal protection and range work alike. Users generally report smooth operation with quality brass-cased ammunition, though a few note sensitivity to steel-case or lower-quality loads. Ergonomics get mixed feedback: the overall handling is comfortable for most, but some find the pistol layout less natural than a traditional handgun. The 32-round magazine capacity is consistently praised. Customization comes up often. Optics and lights mount easily, and the platform accepts standard AR-style accessories. Price is a sticking point for some; comparable PCCs are available cheaper, though usually not in 5.7. The aesthetics appeal broadly to buyers who want a modern tactical look. Online communities around the Banshee MK4 are active, with users regularly sharing ammo tests and accessory setups.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Buds Gun Shop | $1388.49 |

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