Colt Mfg M5 Sentry Rifle 5.56 NATO 16" Barrel 30-Round Capacity CM556-16-M5S
$1,594.13
$1,999.00
(You save
$404.87
)
- Capacity-Rounds:
- 30
- Caliber-Gauge:
- 223 Remington / 5.56 NATO
- Hand:
- Right Hand
- Barrel Length:
- 16.1"
- Barrel Length Range:
- 16" to 16.99"
- OAL:
- 32"- 35.50"
- Weight:
- 6.80 lbs
- Action:
- Semi-Auto
- Receiver Material:
- 7075-T6 Aluminum
- Safety:
- Safety Selector Switch
- Stock Finish Group:
- Black
- Twist:
- 1:7"
- Stock Description:
- Collapsible
- Sights:
- Flip Up Front & Rear
- Weight Range:
- 6 lbs to 6.99 lbs
The Colt M5 Sentry rifle in 5.56 NATO is a modern semi-automatic carbine built on Colt's redesigned receiver platform, engineered for shooters who demand both precision and everyday practicality. With a 16-inch barrel, ambidextrous controls, and a rigid free-float rail system, this 5.56 rifle handles equally well on the range, in the field, or as a reliable defensive tool. At 6.8 pounds unloaded and configurable between 32.5 and 36 inches in overall length, the M5 strikes a balance between maneuverability and shootability without sacrificing durability or ergonomics.
The receiver set is machined from 7075-T6 aluminum and finished in black hardcoat anodize, a combination that resists corrosion and handles hard use. The 4150 chrome-lined barrel features a 1:7 right-hand twist optimized for a wide range of 5.56 loads, and the direct gas impingement system is proven, familiar, and easy to maintain. Colt's carbine-length gas tube keeps the action smooth without excessive bolt carrier speed, and the free-float design minimizes contact between barrel and handguard for consistent accuracy.
Controls are truly ambidextrous—safety lever, magazine release, and charging handle all work from either side—making this rifle accessible whether you're right- or left-handed. The single-stage trigger, government-profile grip, and folding low-profile front and rear sights give you a solid base to work from out of the box. The 30-round Magpul PMAG and cable lock are included, along with the owner's manual.
Key Features
- Fully ambidextrous controls for both left- and right-handed shooters
- Rigid free-float rail system for consistent accuracy
- Direct impingement carbine-length gas system for reliability and low recoil
- 7075-T6 aluminum receivers with black hardcoat anodized finish
- Chrome-lined 4150 barrel, 1:7 twist, optimized for common 5.56 ammunition
- Folding low-profile adjustable front and rear sights
- Includes Magpul 30-round magazine and cable lock
Specifications
| Caliber | 5.56 NATO |
| Barrel Length | 16 inches |
| Magazine Capacity | 30 rounds |
| Overall Length | 32.5–36 inches (adjustable) |
| Unloaded Weight | 6.8 lbs |
| Upper Receiver Material | 7075-T6 aluminum, black hardcoat anodized |
| Lower Receiver Material | 7075-T6 aluminum, black hardcoat anodized |
| Barrel Material | 4150 CMV steel, chrome lined |
| Barrel Twist | 1:7 right-hand, 6 groove |
| Fire Mode | Semi-automatic |
| Trigger | Single stage |
| Safety | Ambidextrous safe/semi |
| Grip | Government A2 |
| Front Sight | Folding low-profile adjustable |
| Rear Sight | Folding low-profile adjustable |
| Operating System | Direct gas impingement |
| Included | 30-round Magpul PMAG, cable lock, manual |
Frequently Asked Questions
What 5.56 ammunition works in the Colt M5 Sentry?
The M5's 1:7 right-hand twist barrel is designed to reliably cycle standard 5.56 NATO ammunition. Your gun shop or range staff can help you select the right load for your intended use.
Is this rifle ambidextrous?
Yes. The safety lever, magazine release, and charging handle are all ambidextrous, making it equally easy to operate for right- and left-handed shooters.
What's included in the box?
You receive the rifle, one 30-round Magpul PMAG magazine, a cable lock, and the owner's manual.
Can I adjust the stock or barrel length?
The overall length of the rifle is adjustable between 32.5 and 36 inches. For specifics on stock or rail configuration options, consult your owner's manual or contact customer support.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.
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