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10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
 
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MSRP: $383.00
Our Price: $337.99
SALE PRICE: $287.99

Price with Selected Options: $287.99

Stock Status: In Stock


Product Code: MAS-105N2-MDSQ-10

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
 
10.5" 5.56 / .223 BARRELED UPPER - MAS SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL

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 - 10.5" 5.56 / .223 Barrel. Click on the drop down box above to choose from our selection.

3. Handguard - MAS Defense Squadron 9.87" 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 - Carbine 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.

***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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M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON AR-15 M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN)

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 22 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Number 2 June 15, 2023
: timothy huie from Hamptonville, NC United States  
This is my second SBR upper from Mas Defense.  No issues, all is good.

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  0 of 0 people found the following review helpful:
 
5 of 5 Amazing! May 30, 2023
: Jacob Stradley  
At first I was kind of skeptical because I haven’t heard of this brand (like some others on these reviews) but I was called to confirm my billing and shipping address and the guy was super cool and nice! When the product came in it was pretty nice quality and everything so far seems to be really good! I’m super happy with my order and 110% recommend MAS Defense!

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Service July 23, 2022
: Trenton Blevins from Reeds Spring, MO United States  
The team was on top of it. They called me once the build was finished and gave me a shipping estimate that was very fast, 3-4 days after purchase. The quality of the build was better then expected and up to par with Aero, or BCM, if not better in my opinion. The laser engraving was spot on. I was a first time buyer and plan on returning 👍

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  0 of 0 people found the following review helpful:
 
5 of 5 Great upper very impressive May 7, 2021
: CM from Fort Collins, CO United States  
Great upper well built quality hand guard and love the light weight faxon barrel. I was a bit worried at first since I had never heard of this company but they did not disappoint and the shipping was super fast.  MAS defense definitely will have my business from now on.

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  0 of 0 people found the following review helpful:
 
5 of 5 May 6, 2021
: Solomon Enis from Phoenix, AZ United States  


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