# Colt M4 CR6920 Semi-Auto 5.56 NATO Rifle - Tactical Black

**Brand:** Colt
**Category:** Semi-Automatic Rifles
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 16"
- **Capacity:** 30 rounds
- **Finish:** Matte Black
- **Weight:** 95.2 oz
- **Overall Length:** 35.5"
- **UPC:** 098289023513
- **SKU:** UC1jHmj0r

## Description

The Colt M4 Carbine (CR6920) is a semi-automatic rifle chambered in 5.56x45mm NATO with a 16.1-inch barrel and a four-position adjustable stock. It holds 30+1 rounds and weighs 6.9 lbs. The overall length adjusts between 32.0" and 35.5". A2 front sights and Magpul rear sights are included. The receiver is aluminum alloy, and a muzzle compensator ships with the rifle.

### Key Specifications
- **Manufacturer:** Colt Firearms
- **Model:** M4 Carbine (CR6920)
- **Caliber:** 5.56x45mm NATO
- **Action Type:** Semi-Automatic
- **Capacity:** 30 rounds + 1 in chamber
- **Barrel Length:** 16.1 inches
- **Weight:** 6.9 lbs.
- **Finish Color:** Black
- **Overall Length:** Adjustable between 32.0" - 35.5"
- **Safety Mechanism:** Cross Bolt Safety

### Detailed Features
The four-position stock adjusts for different shooters and shooting positions without tools. A2 front sights are a proven design that hold zero reliably; the Magpul rear sight adds windage and elevation adjustment. The aluminum alloy receiver keeps weight in check while handling the stresses of 5.56 NATO without issue.

The muzzle compensator reduces recoil and muzzle rise, which helps with faster follow-up shots. The cross bolt safety is a clean, simple mechanism that works reliably.

### Usage Scenarios
- Home defense where the 5.56 caliber, 30+1 capacity, and adjustable stock suit a range of users in the same household.
- Competitive shooting where the platform's established ergonomics and widespread aftermarket support make setup straightforward.
- Training and general range use where the rifle's familiarity and parts availability are practical advantages.

## Frequently Asked Questions

**Q: What caliber is the Colt M4 Carbine?**

A: It is chambered in 5.56x45mm NATO.

**Q: Who makes the M4 Carbine CR6920?**

A: Colt makes the M4 Carbine CR6920.

**Q: What type of firearm is the Colt M4 Carbine?**

A: It is a semi-automatic rifle with a four-position adjustable stock and an aluminum alloy receiver.

**Q: What is the barrel length of the Colt M4 Carbine?**

A: It has a 16.1-inch barrel.

**Q: How many rounds does the Colt M4 Carbine hold?**

A: It has a 30+1 capacity.

**Q: Where can I buy the Colt M4 Carbine?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The Colt M4 CR6920 is a well-regarded rifle in the AR-15 category. Owners consistently praise reliability and accuracy, and the Colt name carries genuine credibility in this platform. The lightweight design and adjustable stock work well together for extended use, and the rifle's wide customization options are a frequent positive. The aftermarket for this platform is as deep as any rifle in production.

Price is the most common friction point. Some owners feel that equivalent reliability and accuracy is available at lower cost from other manufacturers, and that the Colt premium requires justification beyond brand recognition. Availability issues have been reported by some buyers, particularly during high-demand periods. Minor complaints about finish durability over time and specific small components appear occasionally but are not widespread. The overall sentiment is clearly positive. The CR6920 holds its position as a reference-grade civilian AR-15.

## Pricing

**16 offers available**

| Vendor | Price |
|--------|-------|
| Deguns | $899.99 |
| Kygunco Com | $949.20 |
| Gritrsports Com | $949.99 |
| Guns Com | $963.99 |
| Impactguns Com | $1019.69 |
| Brownells | $1019.70 |
| Classicfirearms Com | $1030.00 |
| Shootingsurplus Com | $1033.61 |
| Buds Gun Shop | $1065.49 |
| Gunbuyer Com | $1066.05 |

*...and 6 more offers*

## Reviews

**Average Rating:** 5.0/5 (1 reviews)

> **debbie8** (5/5): With good ammunition, mine ran an entire magazine flawlessly.

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