Colt AR15A4 5.56mm Semi-Auto Rifle | 20" Barrel

$1,099.00 $950.00
(41 reviews)
Current Stock:
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The Colt AR15-A4 is a semi-automatic version of the rifle that started it all, the M16.

CR6700A4 - Lower receiver marked "CARBINE"


  • CALIBER: 5.56x45 NATO
  • BARREL LENGTH (IN.): 20"
  • BORE: Chromed, 6 Grooves, 1-7" RH Twist
  • FRONT SIGHT: Adjustable Post for Elevation
  • REAR SIGHT: Adjustable for Windage
  • LENGTH: 39.5"
  • WEIGHT: 7.71 lbs
  • ACTION: Direct Gas System, Locking Bolt
  • FINISH: Matte Black
  • MAGAZINE: 1 - 30RD


  • 5
    Colt cr6700a4

    Posted by Michael Yarmon on 23rd Feb 2024

    Just what I was looking for & at a reasonable price, very happy!

  • 5
    Colt 6700a4

    Posted by Travis Condray on 14th Feb 2024

    Easy communication and fast shipping

  • 5
    Colt AR15A4 Semi-Auto 20" Barrel Rifle

    Posted by Steve on 25th Oct 2023

    This is exactly what I wanted. Everything went good with the purchase - no complaints

  • 5
    Colt carbine

    Posted by Peter Garner on 3rd Aug 2023

    always wanted one of these....some purists would decry the Carbine stamp vs AR15....but I simply wanted a Colt "version" be stored for potentially future need.

  • 5
    Colt AR15A4

    Posted by Bart on 15th Jun 2023

    A great gun so far at the range did not take long to Zero it in.

  • 5
    Great rifle

    Posted by Matt on 16th May 2023

    I ordered the AR15A4 in May of 2023 unfortunately it came marked carbine. However that was the only detractor. This is a great rifle well put together cage codes every where including on the buffer tube. You can not beat the price of these guys right now. Arms unlimited has them for at least 100 dollars cheaper than anyone else. Don’t worry about the marking on the lower order one now!

  • 5
    El ARMA

    Posted by César Gayozzo on 28th Apr 2023


  • 5
    Great gun for the money

    Posted by Darrel on 24th Jan 2023

    Smooth and accurate. Very pleased with this purchase.

  • 5
    Best gift

    Posted by Don on 29th Dec 2022

    Bast gift I ever gave