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Colt M16A4 20 inch Barreled Upper Receiver Assembly
Colt AR15A4/M16A4 20 inch Upper Receiver Assembly


 
Price: $650.00
SALE: $380.00
Savings: $270.00

Stock Status:In Stock

SKU: M16A4-SUR
Qty:

 

Colt M16A4 20 inch Barreled Upper Receiver Assembly


Description


The Colt AR15A4/M16A4 Barreled Upper Assembly is used on current issue M16A4 model rifles as well as civilian AR15A4 model rifles. This upper receiver allows for a free-floated barrel and also features a gas-block mounted fixed front sight post with bayonet lug and flat picatinny top. The barrel is Colt's standard 20" chrome lined M16 barrel with an A2 flash hider up front.

Package Contents



  • Colt M16A4 Barreled Upper Assembly

  • Fixed Post Front Sight


Specifications



  • 20 Inch 1/7 twist Mil-Spec chrome lined MP tested barrel

  • Unique direct gas operating system eliminates the conventional operating rod and results in fewer and lighter components

  • Accommodates the full range of 5.56mm ammunition, including the NATO M855/SS109 and U.S. M193, utilizing a rifling twist of 1 turn in 7"

  • Straight-line construction disperses recoil straight back to the shoulder, increasing handling capabilities, especially during repeated fire

  • Cartridge case deflector allows easy operation in both right and left handed shooting positions for increased tactical applications

  • Muzzle compensator further reduces muzzle climb and helps eliminate flash and dust signatures

  • Ejection port cover protects the chamber from dust and mud

  • Field strips easily without special tools for simple field user maintenance

  • Flat top receiver allows for removable carrying handle and easy mounting of accessories

  • High strength materials for greater comfort and effectiveness

  • Caliber - 5.56mm

  • Gas Direct system, Locking bolt

  • Front Sight - Adjustable front

  • Flash Hider


Suggested Accessories:
Colt AR15/M16/M4 20rd USGI Aluminum Magazine Colt AR15/M16/M4 30rd USGI Aluminum Magazine Colt M4 Carbine Lower Receiver Assembly Magpul PMAG 10-Round GEN M3 AR/M4 Magazine
SALE: $19.95

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SALE: $19.95

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Price: $399.00

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SALE: $12.95

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Colt AR15/M16/M4 20-round USGI Aluminum Magazine Colt AR15/M16/M4 30-round USGI Aluminum Magazine Colt M4 Carbine Lower Receiver Assembly Magpul MAG559 PMAG 10-Round GEN M3 .223 5.56 Magazine

Average Rating: 5 of 5 Total Reviews: 11 Write a review »

  0 of 0 people found the following review helpful:
 
Colt M16A4 20 in barreled upper September 3, 2019
Reviewer: Steve from Walbridge, OH United States  
Product is great and dealing with arms unlimited is always great also! Just wish they'd of sent a couple stickers along with my order

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  0 of 0 people found the following review helpful:
 
Perfect for my A4 clone build August 18, 2019
Reviewer: P. E. from Irvine, KY United States  
Everything about it is perfect, especially at the AU price. Colt made a mistake and sent out the wrong uppers causing a minor setback with the order. Definitely not Arms Unlimited's fault but they were great to communicate with and made everything right as quickly as possible. I'm happy I didn't hold off on ordering because these are brand new Colt M16A4 upper assemblies for $xxx with free shipping. At that price I'm very tempted to order another before they're out of stock again. Thank you Arms Unlimited for the excellent service.

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  0 of 0 people found the following review helpful:
 
Colt M16A4 Upper October 17, 2018
Reviewer: Kevin Ellis from United States  
The upper is exactly what you would expect from Colt. Fast shipping. Excellent price.

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  0 of 0 people found the following review helpful:
 
Colt A4 Barreled Upper October 15, 2018
Reviewer: Robert Russell from Georgetown, KY United States  
The Upper was marked with the Colt cage code instead of a C proof, barrel is C marked, chrome bore. Wish upper has a C proof, but it is the new way, Brother!

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  0 of 0 people found the following review helpful:
 
Colt M16A4 30 inch Barreled Upper ReceiverAssembly September 6, 2018
Reviewer: David Parrish from Maxville, FL United States  
Bought on sale looks good and happy with purchase

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