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14.5" 5.56 / .223 BARRELED UPPER - YANKEE HILL 12.58" DIAMOND
14.5" 5.56 / .223 BARRELED UPPER - YANKEE HILL 12.58" DIAMOND


 
MSRP: $415.00
Our Price: $324.99

Price with Selected Options: $324.99

Stock Status: (Out of Stock)

Product Code: MAS-145N2-YHDM-12

Upper Receiver Options:


Barrel Options:


Gas Block Options:


Gas Tube Options:


Muzzle Device Options:



Qty:  
DESCRIPTION
 
The options listed below come standard with this barreled upper. The drop down options listed above allow you to customize your build. You can leave them as is, change one option or change them all! We let you build your upper the way you want it built!

1. Upper Receiver - 7075 T6 Aluminum A4. Precision Machined to Mil-Spec Tolerances. Black Hardcoat Anodized Mil-Std-171 Type III. M4 Ramps, Forward Assist, Ejection Door.

2. Barrel - 14.5" 5.56 / .223 1x7 Twist M4 Contour 4150 CrMoV Hardened Steel

3. Handguard - Yankee Hill Machine 9635 - 12.58" Diamond Series

4. Gas Block - .750 Low Profile Steel Melonite Nitride Treated Gas Block

5. Gas Tube - Carbine Length Stainless Steel Gas Tube

6. Muzzle Device - A2 Flash Hider

Bolt Carrier Groups and Charging Handles are sold separately.

All barreled uppers are head spaced and test fired to ensure function.

ALL LAWS APPLY. IT IS THE RESPONSIBILITY OF THE BUYER TO UNDERSTAND ALL LAWS REGARDING PURCHASE AND OWNERSHIP OF THIS UPPER. WE STRONGLY URGE YOU TO CONTACT YOUR LOCAL FFL AND/OR THE ATF WITH ANY AND ALL QUESTIONS TO MAKE SURE YOU UNDERSTAND THE LAW BEFORE PURCHASING THIS ITEM.

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 4 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 AWESOME September 4, 2019
: Tyler from Los Angeles, CA United States  
I received my upper in a timely manner and it was everything I had hoped it would be. The Mas Defense upper receiver is top notch too. It is a perfect fit for my 80% lower (also Mas Defense). Highly recommend!

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  0 of 0 people found the following review helpful:
 
5 of 5 Top Service June 17, 2019
: Richard Alvarez from Ewa Beach, HI United States  
Received my complete upper assembly and couldn’t be any happier. Top quality, excellent customer service, and price was affordable. I definitely recommend MAS Defense 24/7. Thank you for the pleasant experience.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great Quality August 14, 2016
: Ricardo R  
This is my second upper I bought from them, great quality and timely delivery, thanks

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  0 of 0 people found the following review helpful:
 
5 of 5 My first AR build September 2, 2014
: Jamey M  
This was my first AR build I've done and having MAS defense handle the upper saved me a great deal of headache. I was extremely impressed with the quality of the work and love the end result.

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