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16'' 556 NATO Parkerized M4 Barrel
12'' Rail - A2 Flash Hider
AR15 Rifle Upper Assembly

16'' 556 NATO Parkerized M4 Barrel 12'' Rail - A2 Flash Hider AR15 Rifle Upper Assembly


 
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List Price: $400.00
Our Price: $310.00
Savings: $90.00

Quantity in Stock:416
Product Code: 16M4CMU1X8KMRL


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Upgrade Muzzle Device (1/2x28):


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Description
 

16" 556 NATO Parkerized M4 Barrel AR15 Rifle Upper Assembly with 12" Rail and A2 Flash Hider

  • 16" 556 NATO 4150 Chrome Moly M4 Contour Parkerized Barrel with 1x8 Twist and 1/2x28 Threads.
  • Mil-Spec Upper Receiver forged from 7075 T6 aluminum with forward assist and dust cover assembly installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
  • 12" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. Very comfortable and very light weight. Your choice of MLOK or KEYMOD attachment points along the entire length at 3, 6, and 9 positions. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
  • 0.750" Low Profile Gas Block.
  • Carbine Length Gas System.
  • Mil-Spec A2 Flash Hider with crush washer.
  • OPTION - Choose the Rail Type (MLOK or KEYMOD)
  • OPTION - Upgrade Muzzle Device
  • OPTION - Add a Magazine
  • OPTION - Add a Bolt Carrier Group
  • OPTION - Add a Charging Handle

This upper assembly will fit all standard AR15 lower receivers.

This item is "Firearm Parts", not a complete firearm (no serialized components). It will be shipped directly to you with no FFL transfer required.

You are responsible for knowing federal, state and local laws applicable to this item. AR15Part.com reserves the right to not ship to addresses where it may not be legal to own this item.


Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 21 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Craftsmanship March 28, 2021
Reviewer: BD from Kansas City, MO United States  
I have purchased multiple upper assemblies from various manufacturers but the ones from AR15part.com are my go to. The care and craftsmanship are excellent and the customer service is exceptional. Every item I have received has functioned 100%. The other manufacturers I've used can't even come close to the reliability I get when I order here.

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  0 of 0 people found the following review helpful:
 
4 of 5 Quick and accurate March 28, 2021
Reviewer: Peter Thellas from Maywood, CA United States  
My experience with ar15part.com was great. I received exactly what was stated about the product, and very quickly. Overall quality of products were well worth the cost.

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  0 of 0 people found the following review helpful:
 
5 of 5 M4Barrel March 25, 2021
Reviewer: Kelly Kendrick from Pelham, AL United States  
Nice upper. Quick delivery.

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  0 of 0 people found the following review helpful:
 
5 of 5 556 M4 barrel complete March 21, 2021
Reviewer: Robert  
Great product! Looks and works great. Fast shipping

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  0 of 0 people found the following review helpful:
 
5 of 5 Best customer service ever February 4, 2021
Reviewer: Shannon M from blountville, TN United States  
I bought an upper and received it fast but after shooting it i thought it was faulty, sent an email and within a few hours one of the owners called me, he sent me a shipping code so could send it back, when he recieved it he took it and test fired it himself. Long story short my bolt that i did not purchase from them was malfunctioning, he called me, sent video of my upper firing and gave me really great deal on a bcg to get me going, these folks are doing what business used to do to make customers happy, great upper great fit, finish but wow at the customer care. These folks are the real deal. Thanks guys cant say enough about it!

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