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16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL - MID-LENGTH GAS
16" 5.56 / .223 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL - MID-LENGTH GAS


 
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MSRP: $425.00
Our Price: $349.99
SALE PRICE: $299.99

Price with Selected Options: $299.99

Stock Status: In Stock


Product Code: MAS-165N3-MDOC-15

Upper Receiver Options:


Barrel Options:


Handguard Options:


Gas Block Options:


Gas Tube Options:


Muzzle Device Options:


***ON SALE - Choose a Bolt Carrier Group:


***ON SALE - Choose a Charging Handle:



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DESCRIPTION
 
16" 5.56 / .223 BARRELED UPPER - MAS DEFENSE 15" MW8 OCTAGON M-LOK RAIL - MID-LENGTH GAS

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" 5.56 NATO / .223 Govt 4150 CrMoV Steel

3. Handguard - MAS Defense 15" MW8 Octagon M-LOK Rail - (ID 1.8")

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

5. Gas Tube - Mid-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.


***80% LOWERS CANNOT BE PURCHASED WITH BARRELED UPPERS OR BUILD KITS. ORDERS THAT INCLUDE THEM WILL BE CANCELLED AND CHARGED A 15% CANCELLATION FEE***.


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

  0 of 0 people found the following review helpful:
 
5 of 5 Great Product, Fast Shipping June 16, 2020
: Matt Schappa from Greenwood, IN United States  
This is the second order I’ve placed with MAS Defense and I’m happy again. The complete upper was shipped fast, was packaged nicely, and arrived ready to go with the BCG and charging handle I ordered, too.

I originally wanted the ridgeline handguard, but they were sold out. That said, I’m thrilled with the octagon. It’s solid, sturdy, and looks great. Price is impossible to beat for the quality of products you receive here. Will definitely be back for other builds.

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5 of 5 May 31, 2020
: Creed from Huntington , WV United States  
Not my first MasDefense purchase won’t be my last.
In this time of covid19 induced bare shelves and long wait times I got my shipping notice the day after I ordered. My order arrived in 3 day! Thanks Mas Defense!
God Bless America!🇺🇸🇺🇸🇺🇸

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  0 of 0 people found the following review helpful:
 
5 of 5 Awesome May 8, 2020
: Trevor Willey from Oakhills, CA United States  
Great product super fast shipping super efficient!

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  0 of 0 people found the following review helpful:
 
5 of 5 March 26, 2020
: Christopher Hanson  


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5 of 5 February 2, 2020
: peter ahn from fayetteville, NC United States  
best

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