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5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 7" LIGHTWEIGHT QUAD RAIL
5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 7" LIGHTWEIGHT QUAD RAIL


 
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MSRP: $325.00
Our Price: $253.99
SALE PRICE: $228.99

Price with Selected Options: $228.99

Stock Status: In Stock


Product Code: MAS-059M0-MDSQ-07

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
 
5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 7" 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 - 5.25" 9MM NATO (9x19) 1x10 4150 CrMoV Melonite Nitride Treated Steel

3. Handguard - MAS Defense "SQUADRON" 7" Lightweight Quad Rail - (ID 1.8"). Click the drop down above for FDE.

4. Muzzle Device - Flash Can - Slim (Pictured)

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: 4 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Superb Upper March 4, 2023
: Brian from Mineral, VA United States  
Shot this upper the same day i got it and it runs flawlessly. Also looks great. No regrets using this upper for my first AR pistol build

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  0 of 0 people found the following review helpful:
 
5 of 5 AWESOME!!! November 5, 2021
: Gary L from Corvallis, OR United States  
Let me start off by saying that this upper looks awesome. The MAS Defense logos on it really finish it off. I had everyone wanting to check it out at the range. I have it paired with a PSA pistol lower, the MAS Defense bolt & buffer and a Primary Arms red dot. My first trip to the range was a real disappointment. I used some Means Endomags. I had either double feeds or light primer strikes about 50% of the time. I have heard that Endomags can work great with some builds & not with others. Maybe the bolt? I decided to get a KAK Mag Well Insert and some Metalform Colt magazines and VIOLLA!!! I put 100 rounds down range without a hiccup. My indoor range is only 45 feet but the groups were super tight using Norma & Blazer Brass. I will definitely be purchasing from MAS Defense again!!

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  0 of 0 people found the following review helpful:
 
5 of 5 Worth the purchase July 16, 2020
: Zach from Ohio  
Pictures don’t do them justice online!

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  0 of 0 people found the following review helpful:
 
5 of 5 December 11, 2019
: Tracy Belott from Williamsburg , VA United States  


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