Colt Mono CR6940: 5.56 NATO Semi-Auto 16" Rifle - Matte Black
The Colt Mono CR6940: 5.56 NATO Semi-Auto 16" Rifle - Matte Black is a 5.56 NATO semi-automatic rifles from Colt. It is available from 4 vendors at $1299.99 to $1699.99.

Product Information
Name: Colt Mono CR6940: 5.56 NATO Semi-Auto 16" Rifle - Matte Black
Brand: Colt
Category: Semi-Automatic Rifles
Caliber: 5.56 NATO
Barrel Length: 16.1"
Capacity: 30 rounds
UPC: 098289023568
SKU: UC1jHmj1k
Description
The Colt Mono Carbine Rifle (CR6940) is a direct impingement semi-automatic rifle chambered in 5.56x45mm NATO. It has a 16.1-inch barrel, 30-round capacity, and weighs 6.79 lbs. Finish is matte black. Sights are A2 front and Magpul MBUS rear. The stock is M4-style adjustable.
Key Specifications
- Manufacturer: Colt Firearms
- Model: Mono Carbine Rifle (CR6940)
- Caliber: 5.56x45mm NATO
- Action: Direct Impingement Semi-Auto
- Capacity: 30 rounds
- Barrel Length: 16.1 inches
- Weight: 6.79 lbs
- Finish: Matte Black
Detailed Features
The direct impingement action cycles reliably and keeps the weight down. At 6.79 lbs it is on the lighter end for a 16-inch carbine. The A2 front sight combined with Magpul MBUS rear gives a usable iron sight picture out of the box. The M4-style adjustable stock accommodates different length-of-pull preferences and body types.
Colt's manufacturing quality means tight tolerances and consistent headspacing. The 5.56x45mm NATO chambering handles both 5.56 and .223 Rem ammunition.
Complete Specifications
| Caliber | 5.56 NATO |
| Model | MSR |
| Capacity | 30 rounds |
| Magazines included | 1 |
| Barrel length | 16.1" |
| Overall length | 35" |
| Weight | 108.64 oz |
| Action | Semi Auto |
| Finish | Black |
| Frame material | Aluminum |
| Color | Black |
| Stock material | Synthetic |
| Sights | Magpul Rear, Folding Front |
| Safety | Reversible SafetySelector |
Frequently Asked Questions
What caliber is the Colt MSR?
The Colt MSR (CR6940) is chambered in 5.56x45mm NATO.
Who makes the Colt MSR?
Colt Firearms manufactures it.
What type of firearm is the Colt MSR?
It is a direct impingement semi-automatic rifle.
What is the barrel length of the Colt MSR?
The barrel is 16.1 inches.
How many rounds does the Colt MSR hold?
It has a 30-round capacity.
What sights does the Colt MSR come with?
It comes with an A2 front sight and a Magpul MBUS rear sight.
Where can I buy the Colt MSR?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The Colt CR6940 draws buyers who specifically want Colt's manufacturing quality and brand reputation in a direct impingement carbine. Build quality and reliability are the most consistent positives — Colt's tolerances and QC are frequently mentioned as stronger than cheaper AR alternatives.
Performance gets positive marks. The rifle operates smoothly in most conditions with minimal reported malfunctions. Ergonomics are well-regarded — controls are intuitive and the M4 stock accommodates most shooters comfortably.
Customization discussions come up often. The platform accepts a wide range of optics, grips, and accessories, which owners appreciate.
Price is the main criticism. The CR6940 costs more than comparable ARs from other manufacturers, and buyers debate whether the Colt premium is justified versus options from Smith & Wesson or Daniel Defense at different price points. Those who prioritize Colt's name and American manufacturing generally feel the cost is worth it. The matte black finish gets specific positive remarks for durability and appearance.
Where to Buy - 5 Offers Available
Price Range: $1299.99 - $1699.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Guns Com | $1299.99 | Used | Buy Now |
| Grabagun Com | $1364.99 | New | Buy Now |
| Kygunco Com | $1416.8 | New | Buy Now |
| Buds Gun Shop | $1443.99 | New | Buy Now |
| Guns Com | $1699.99 | New | Buy Now |

















