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Colt M4 Carbine FBP Federal Patrol .223 Remington 5.56 NATO Matte Black Rifle

The Colt M4 Carbine FBP Federal Patrol rifle is a dependable semi-automatic platform chambered in 5.56 NATO and compatible with .223 Remington ammunition. Its 16.1-inch M4-profile barrel includes a flash hider and a threaded muzzle, while the adjustable polymer stock allows the overall length to adapt from 32.5 to 36 inches. A flat-top receiver with an integrated Picatinny rail supports optics, and the included flip-up sights provide a practical aiming solution. The rifle features a matte black finish, lightweight aluminum construction, and one detachable 30-round magazine.

Key features

  • Chambered in 5.56 NATO and compatible with .223 Remington ammunition
  • 16.1-inch threaded M4-profile barrel with flash hider
  • Semi-automatic action with a manual selector safety
  • Adjustable polymer stock with a 32.5- to 36-inch overall length
  • Flat-top receiver with Picatinny rail for optic mounting
  • Flip-up sights for a low-profile backup aiming setup

The Colt M4 Carbine FBP combines familiar M4 controls with a practical patrol-oriented configuration for range use, training, and defensive applications.

Colt M4 Carbine FBP Federal Patrol .223 Remington 5.56 NATO: quick facts

What caliber is the Colt M4 Carbine FBP Federal Patrol .223 Remington 5.56 NATO?
It is chambered in .223 Remington, 5.56 NATO.
How many rounds does it hold?
30+1 rounds; magazines included: 1.
How big and heavy is it?
Barrel length 16.1 inches, overall length 32.5 inches, weight 7.3 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: Matte Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Delaware?
Yes. It ships to a licensed FFL dealer in Delaware; you pick it up there after the background check. This long gun ships to the licensed Delaware dealer you choose, where you finish Form 4473 and the background check.
Is it in stock?
Yes, at $1694.51. Orders leave within 1-2 business days; shipping is free over $999.

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