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8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL - FDE
8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL - FDE


 
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RETAIL: $425.00
Our Price: $367.99

Price with Selected Options: $367.99

Stock Status: In Stock

Product Code: MAS-083B1-MDSQ-10F

Upper Receiver Options:


Barrel Options:


Handguard Options:


Gas Block Options:


Gas Tube Options:


Muzzle Device Options:



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DESCRIPTION
 
8.5" 300 Blackout Barreled Upper - MAS Squadron 9.87" Lightweight Quad Rail - FDE

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 - 8.5" - 9.5" 300 Blackout Barrel. Click on the drop down box above to choose from our selection.

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

4. Gas Block - .750 Low Profile Steel Melonite Nitride Treated Gas Block

5. Gas Tube - Pistol Length Stainless Steel Gas Tube

6. Muzzle Device - Flash Can

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.

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 8 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
4 of 5 Service March 4, 2021
: Eric Bland from Auburn, WA United States  
Upper came quicker than expected, packaging was nice and secured.... haven't build my lower yet,  will update once i do.  will be ordering more parts from you guys thanks!

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  0 of 0 people found the following review helpful:
 
5 of 5 300 Blackout Upper June 26, 2020
: Gregery Ball from New Hope, MN United States  
Quick shipping. I was able to complete my build using this upper and I must say I will definitely buy my uppers from MAS Defense in the future. Works great with the binary trigger setup. No issues at all.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great product great service! June 24, 2020
: twentythree from Durham, NC United States  
Bought my first Blackout upper from a different outfit, had trouble getting it to run. I was a little apprehensive about buying another but I wanted a pistol length gun for home defense. The MAS Defense upper was awesome! Snapped it on and went to town! Liked it so much I bought another one a week later! Thanks MAS!

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  0 of 0 people found the following review helpful:
 
5 of 5 Looks good June 19, 2020
: Peyton Matthews from Brinkley, AR United States  
Haven’t fired it yet, but everything looks great. Shipping was fast. Still waiting on the lower from another company.

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  1 of 1 people found the following review helpful:
 
5 of 5 Perfect! May 6, 2020
: Brandon Thomas from Athol, MA United States  
This complete upper kit is amazing. Well built and so far hasn't let me down. I was super happy with the upper kit and the service from MAS. Thanks guys!

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