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Colt CR6940 Monolithic Carbine 5.56 NATO Blue/Black Rifle

The Colt CR6940 Monolithic Carbine is a 5.56 NATO semi-automatic rifle built around a one-piece monolithic upper receiver. Its continuous Mil-Spec Picatinny rail extends from the rear of the receiver to the front sight, providing a stable mounting surface for optics and accessories. The true free-floating 16.1-inch government-profile barrel supports consistent accuracy, while the direct-impingement operating system preserves the familiar handling and controls of the AR-15 platform. Folding front and Magpul MBUS rear sights provide a practical backup sighting system, and the M4-style synthetic stock offers an adjustable fit for a wide range of users.

Key features

  • One-piece monolithic upper receiver with continuous Mil-Spec Picatinny rail
  • Free-floating 16.1-inch government-profile barrel for consistent accuracy
  • 5.56 NATO chambering also compatible with .223 Remington ammunition
  • Direct-impingement semi-automatic operation with 30+1 capacity
  • Magpul MBUS rear sight and folding front sight for backup aiming capability
  • M4-style synthetic stock provides adjustable length of pull and familiar handling

The Colt CR6940 combines a rigid monolithic receiver, free-floating barrel, and adaptable AR-15 controls in a versatile modern sporting rifle.

Colt CR6940 Monolithic Carbine 5.56 NATO Blue/Black Rifle: quick facts

What caliber is the Colt CR6940 Monolithic Carbine 5.56 NATO Blue/Black Rifle?
It is chambered in 5.56 NATO, .223 Remington.
How many rounds does it hold?
30+1 rounds.
How big and heavy is it?
Barrel length 16.1 inches, overall length 35.5 inches, weight 6.79 pounds.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: Yes.
What sights and finish does it have?
Sights: Standard Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Idaho?
Yes. It ships to a licensed FFL dealer in Idaho; you pick it up there after the background check. Idaho buyers pick this up at a licensed dealer after a NICS check, with no permit and no waiting period; dealers sell rifles and shotguns from age 18.
Is it in stock?
Yes, at $1625.51. Orders leave within 1-2 business days; shipping is free over $999.

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