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16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 12" LIGHTWEIGHT QUAD RAIL - MID-LENGTH GAS
16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 12" LIGHTWEIGHT QUAD RAIL - MID-LENGTH GAS
 
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MSRP: $400.00
Our Price: $342.99
SALE PRICE: $292.99

Price with Selected Options: $292.99

Stock Status: In Stock


Product Code: MAS-165N3-MDSQ-12

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 12" LIGHTWEIGHT QUAD 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 Squadron 12" 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: 15 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
4 of 5 Nice product July 18, 2023
: David from PA, USA  
Seems to be high quality and well built. I don’t have the parts for the rest of my rifle yet, so I can’t try it out to give a full review.

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  0 of 0 people found the following review helpful:
 
5 of 5 Looks and Feels Great May 18, 2022
: from Port Saint Lucie, FL United States  
I received my order in a timely manner. The item was securely packaged. I noticed the barrel was a little dirty so I will need to clean it before shooting but the upper feels and looks really nice.

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  0 of 0 people found the following review helpful:
 
5 of 5 Awesome as always! February 4, 2021
: Alan Claypoole from Stoneboro, PA United States  
Fit and finish are amazing! Couldn't ask for more. Shipping was fast, despite Covid-19 slowing everyone down. MAS is and will be my go- to for all things AR related.

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  0 of 0 people found the following review helpful:
 
5 of 5 5.56 barreled upper February 1, 2021
: Lisa Snyder from Weippe, ID United States  
Very nice upper, prompt service.

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  0 of 0 people found the following review helpful:
 
5 of 5 Nice upper January 7, 2021
: Kenneth Wortham from Hogansville, GA United States  
Good quality and light

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