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16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 15" LIGHTWEIGHT QUAD RAIL - MID-LENGTH GAS
16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 15" LIGHTWEIGHT QUAD RAIL - MID-LENGTH GAS
 
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MSRP: $410.00
Our Price: $344.99
SALE PRICE: $294.99

Price with Selected Options: $294.99

Stock Status: In Stock


Product Code: MAS-165N3-MDSQ-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 SQUADRON 15" LIGHTWEIGHT QUAD RAIL - MID LENGTH GAS SYSTEM

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 Squadron 15" Lightweight Quad Rail - (ID 1.8") - Click on the drop down box above to choose from our selection.

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: 13 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Great quality and fast shipping January 14, 2024
: from Sinking Spring, PA United States  
Everything came fully assembled/lubed and the finish was perfect. Fast shipping was also a huge bonus

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent customer sevice December 4, 2020
: eric sacchitella from DELMAR, NY United States  
I ordered my upper receiver and everything came perfect! Couldn’t be happier. I also had to send my id and wanted to make sure i was all set and got a very fast response confirming i was good to go. I’ll definitely be ordering more through mas defense.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great product December 4, 2020
: Mario Mejia from San Francisco , CA United States  
Love my new upper receiver. It lined up perfect with my polymer lower looks great feels great waiting for the weekend to test

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  0 of 0 people found the following review helpful:
 
4 of 5 Awesome upper October 12, 2020
: Edward Epperson from indianapolis, IN United States  
It is a awesome upper the only thing I have to say is the dust cover is not able to close I had to replace it.

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  0 of 0 people found the following review helpful:
 
5 of 5 Barreled upper October 5, 2020
: Eric McAlister from Oceanside, CA United States  
First AR build. Really happy with the barreled upper from MAS defense. Can’t wait to take it to the range.

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