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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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MSRP: $425.00
Our Price: $369.99
SALE PRICE: $319.99

Price with Selected Options: $319.99

Stock Status: (Out of Stock)

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

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 - 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.

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

  0 of 0 people found the following review helpful:
 
5 of 5 Impressive! December 14, 2023
: Daniel Rodriguez from Kenneth city, FL United States  
The fit and finish,  the ability to pick and choose parts, the quickness. MAS Defense will definitely have my business again. I'm super impressed!

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  0 of 0 people found the following review helpful:
 
5 of 5 Amazing Product, Amazing company November 10, 2022
: Nick G from OBX NC, United States  
Gotta say the 8.5 inch lower that I bought exceeded my expectations, not only did it show up 2 days before it should have, but they threw in a can coozie too. I don’t know how y’all knew I collected coozies but stay out of my head!!! Lol. Was a nice touch can’t wait to let freedom ring with this upper

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  0 of 0 people found the following review helpful:
 
5 of 5 Looks clean, shoots clean! August 11, 2022
: Andrew G. from Salt Lake City  
Man do I love this thing!

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  0 of 0 people found the following review helpful:
 
5 of 5 300 BLACKOUT upper May 27, 2021
: A M from Virginia Beac, VA United States  
In todayS trying times you don’t know what to expect when it comes to ordering over the internet.   I get it prices for anything Gun related has sky rocketed.  At MasDefense prices were certainly higher than before the pandemic but that is now universal.   MasDefense supply and prices was far better than their competitors.   I appreciated their good prices and availability of products.   Thanks for a speedy delivery of my order.

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  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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