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10.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 9.87" M-LOK RAIL
10.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 9.87" M-LOK RAIL


 
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MSRP: $398.00
Our Price: $336.99
SALE PRICE: $286.99

Price with Selected Options: $286.99

Stock Status: In Stock


Product Code: MAS-103B1-MDNM-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
 
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 - 10.5" 300 Blackout Barrel. Click on the drop down box above to choose from our selection.

3. Handguard - MAS Defense "NERO" 9.87" Slimline M-LOK Free Floating Handguard - (ID 1.25")

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

5. Gas Tube - Pistol 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***.


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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 18 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 10.5" AR upper March 19, 2023
: Chris M from Clarkston, MI United States  
Ordering from the website was very easy. Delivery came quicker than I expected. I will definitely look at the MAS site for future build ideas.

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  0 of 0 people found the following review helpful:
 
5 of 5 Perfect March 5, 2023
: Tyler Fuqua from Falkville, AL United States  
Great quality and weight on my hog hunting gun.

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  0 of 0 people found the following review helpful:
 
5 of 5 November 5, 2021
: Bryson Rounds from Maquon, IL United States  
This is my second upper from you guys and I’ve very happy with them both!

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  0 of 0 people found the following review helpful:
 
5 of 5 Better than expected March 11, 2021
: PARKER WATKINS from Fayetteville, AR United States  
Very quick shipping. Very pleased with the product and I have already referred friends. I will be purchasing more from these guys!

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  0 of 0 people found the following review helpful:
 
3 of 5 Never received my product February 24, 2021
: Dustin Bookhout from Decatur , TX United States  
I cannot give this a true rating as I have not received my item.  I wish I could give this a review but I cannot at this time.
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MAS Defense Reply: Dustin, We shipped your barreled upper (4) days after you placed your order.  The recent winter storm that hit your home state of Texas has caused sever shipping delays. We will continue to monitor the tracking number and keep you updated. We appreciate your patience.
Thank you for your business and your feedback!

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