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7.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
7.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL


 
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MSRP: $403.00
Our Price: $344.99
SALE PRICE: $294.99

Price with Selected Options: $294.99

Stock Status: In Stock


Product Code: MAS-073B1-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
 
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 - 7.5" 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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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 FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 7 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Awesome product March 2, 2024
: Andrew Layton from Pennsville, NJ United States  
Great product. Beautiful craftsmanship. Works as it should and exceeded my expectations.

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  0 of 0 people found the following review helpful:
 
5 of 5 300 blk upper April 13, 2023
: Ryan Nelson from Navarre, FL United States  
Product shipped extremely fast, excellent build, aggressive style. 7.5 inch barrel with 9.87 hand guard in absolutely perfect build quality. Overall quality 10/10 for a perfect budget build. Will be ordering more products very soon. Thank you Mas Defense!

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  0 of 0 people found the following review helpful:
 
5 of 5 February 3, 2023
: RICKY from Charlotte, NC United States  
Perfect

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  0 of 0 people found the following review helpful:
 
5 of 5 Very nice build February 24, 2022
: Marc Werner from HELENA, AL United States  
This is a quality item.  Nice rifling in the barrel, gas block is set with two set screws and the barrel is dimpled for proper gas block alignment.  Quad rail hand guard is plenty large enough for most suppressors to fit under.  I would recommend a quick release suppressor as there are 8 screws to remove the quad rail.  Quality fit and finish on this item.  Highly recommend.

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  0 of 0 people found the following review helpful:
 
5 of 5 Pistol Build May 5, 2021
: Kyle from Goldsboro , NC United States  
I’m working to put together a .300 Blackout suppressed pistol build and this upper seems like it will be a great fit. Barrel length is right and it will allow for some of the suppressor to be installed under the handguard. Fit and finish seems great, but I’m waiting on my lower. Can’t wait to have it all good to go!

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