HOME > AR-15 > AR-15 BARRELED UPPERS > 5.56 NATO / .223 >

11.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
11.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL


 
Alternative Views:
MSRP: $383.00
Our Price: $337.99
SALE PRICE: $287.99

Price with Selected Options: $287.99

Stock Status: In Stock


Product Code: MAS-115N2-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:



Qty:  
DESCRIPTION
 
11.5" 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 - 11.5" 5.56 / .223 Barrel. Click on the drop down above to choose from our selection.

3. Handguard - MAS Defense Squadron 9.87" Lightweight Quad Rail - (ID 1.8")

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***.

RELATED ITEMS
FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN) M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID NICKEL BORON M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE
Our Price: $24.99
SALE PRICE: $99.99
SALE PRICE: $99.99
SALE PRICE: $79.99
FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN) M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON AR-15 M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG

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 This thing is sick April 8, 2023
: Fulty from Ballwin, MO United States  
Opted for the upgraded barrel, gas tube, and Aero upper. Fits super snug with my aero lower. The quad rail handguard looks slick, and seems to be super high quality. Such a better value and better looking product than many higher priced ones out there.

Customer service is excellent too. I messed up my order twice (at no fault of MAS, I just have an incredibly smooth brain at times) and they were able to help me fix the issue quickly and easily.

Will be ordering more from them on whatever my next build entails. I do however recommend they put an option to share photos of their products in people's builds, because I would be interested to see what everyone else is putting on their MAS quad rails.

Thanks again for making my build perfect!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Alot for your hard earned $$$! December 25, 2022
: Lucky Shooter from Hutchison, KS United States  
Their uppers and parts are as easy on the eyes as they are your wallet. I dont know how they afford to put out equipment that is this awesome for these prices, but im here for it. I'll be be a returning customer for sure!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Awesome Work February 9, 2022
: Zouheir from CA, United States  
Loved the way it came out. Bought my second upper from Mas Defense. Can’t wait to see what else you guys can do.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Spot on! April 1, 2020
: Jason Hoyle from Bryson City, NC United States  
Great quality. One of the best company out there!!! Extremely fast shipping!!!

Was this review helpful to you?