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10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE 12.62" MW8 OCTAGON M-LOK RAIL
10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE 12.62" MW8 OCTAGON M-LOK RAIL


 
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MSRP: $423.00
Our Price: $355.99
SALE PRICE: $305.99

Price with Selected Options: $305.99

Stock Status: In Stock


Product Code: MAS-105N2-MDOC-12

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
 
10.5" 5.56 / .223 BARRELED UPPER - MAS DEFENSE 12.62" MW8 OCTAGON M-LOK 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 - 10.5" 5.56 / .223 Barrel. Click on the drop down box above to choose from our selection.

3. Handguard - MAS Defense 12.62" MW8 Octagon M-LOK Rail - (ID 1.8")

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

5. Gas Tube - Carbine 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: 4 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Service---Thank you Mas Defense May 15, 2020
: ENC Gunner from Eastern, NC United States  
I was introduced to Mas Defense by my local gun shop...I've purchased several items including 3 barreled uppers. Mas Defense's quality is second to none and the never disappoint.  Thank you!

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  0 of 0 people found the following review helpful:
 
5 of 5 May 14, 2020
: John Barker from Mooresville, NC United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 10.5 Upper May 6, 2020
: Jer N from Norridge, IL United States  
I’m glad I found you guys online. Great build quality, good customer service and over good experience.  I will definitely be buying more from your company.

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  0 of 0 people found the following review helpful:
 
5 of 5 MW8 10.5 April 30, 2020
: Mark T from NV United States  
This is my first pistol length upper, MAS defense was really fast in fulfillment despite the Covid-19 going on.  Fits well on an Aero pistol lower w/bcm parts, shot a few mags and it worked perfectly with no jams with hex mags and a nitride BCG. PS the handguard is on the larger side but works well in terms of keeping the barrel cool.

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