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16" 300 BLACKOUT BARRELED UPPER - YANKEE HILL 12.52" KNURLED
16" 300 BLACKOUT BARRELED UPPER - YANKEE HILL 12.52" KNURLED


 
MSRP: $340.00
Our Price: $249.99

Price with Selected Options: $249.99

Stock Status: (Out of Stock)

Product Code: MAS-163B1-YHKN-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 - 16" 300 AAC Blackout 1x8 4150 CrMoV Melonite Nitride Treated Steel

3. Handguard - Yankee Hill Machine YHM-9649 12.52" Knurled Free Float

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

5. Gas Tube - Pistol Length Stainless Steel Gas Tube

6. Muzzle Device - A2 Half Cage

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: 6 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 great product January 23, 2020
: from Campbell, MN United States  
really clean looking upper,
packaged well and shipped out fast!
shoots great and fit was perfect.

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  0 of 0 people found the following review helpful:
 
5 of 5 Very happy May 9, 2018
: jeffery w  
I recently purchased a .300 Blackout upper with faux suppressor. Very cool stuff. Quick delivery, suppresor was installed on barrel which was a pleasant surprise. Everything was in perfect condition on arrival. Qwik delivery after I put in my order too. This is quality stuff and I will definetly return here for more of my "needs". @ thumbs up guys! Thank you for living up to the recommend I recieved of you.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great setup July 17, 2016
: Brian S  
The upper was better than I could had every thought. But I expected nothing less from MAS, Everything fit perfect

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  0 of 0 people found the following review helpful:
 
4 of 5 Order received February 9, 2016
: Brandon B  
I received my AAC .300 blackout upper in a timely manner. I was very impressed in the product after looking it over when received. The item is exactly what I wanted.I have yet to take it out in the field yet.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great Complete Upper March 31, 2014
: Dion P  
I had the upper in my hand in about a week after ordering and that included the shipping time to get here. Great turn around time! The build was excellent and upon further inspection found that theupper receiver from MAS Defense had the same keyhole forging mark as the receiver on my Colt M4. Both came from the same place. I'll definitely stay a customer.

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