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8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
 
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MSRP: $408.00
Our Price: $344.99
SALE PRICE: $294.99

Price with Selected Options: $294.99

Stock Status: In Stock


Product Code: MAS-083B1-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
 
8.5" 300 Blackout 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 - 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 - (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.

***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: 24 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Top quality build November 19, 2023
: Sterling Deslatte from Austin, TX United States  
The quality and finish of the 300 blk upper I purchased are top notch. Just shot it today for the first time I will only be buying uppers with Mas logo on them from here on out.

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  0 of 0 people found the following review helpful:
 
5 of 5 300 blackout September 14, 2023
: Darryl Barnhart from Swartz Creek, MI United States  
I received my SBR very quickly after I built it on line to my specs. I will be shopping for more masdefense products in the future. I haven’t got my tax stamp yet so I am unable to shoot it. Will keep you posted when I’m able to fire it. Thank you masdefense.

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  0 of 0 people found the following review helpful:
 
5 of 5 Upper February 25, 2023
: Ronnie Lantz  
Awesome product

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent February 18, 2023
: from Springhill , FL United States  
This is one of the best companies to get products from quality and excellent customer service,ships fast definitely recommend them.

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent quality January 8, 2023
: Trenton Shaffer from Coolidge, AZ United States  
The quality of this upper is outstanding! As advertised. Premium quality! I will continue to be a customer for years to come!

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