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8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 9.87" M-LOK RAIL
8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 9.87" M-LOK RAIL


 
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RETAIL: $423.00
Our Price: $348.99

Price with Selected Options: $348.99

Stock Status: In Stock

Product Code: MAS-083B1-MDRL-10

Upper Receiver Options:


Barrel Options:


Handguard Options:


Gas Block Options:


Gas Tube Options:


Muzzle Device Options:



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DESCRIPTION
 
8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 9.87" 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 - 8.5" - 9.5" 300 Blackout Barrel. Click on the drop down box above to choose from our selection.

3. Handguard - MAS Defense "RIDGELINE" 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 - Flash Can - Slim (Pictured)

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.

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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 8.5" upper May 13, 2021
: Eric Smith from Coolidge, TX United States  
Wow, wow wow I can't wait to finish getting this put together. Feels great in my hands and light.

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent product April 8, 2021
: Matt Smith from HONEY BROOK, PA United States  
Product is as advertised.  Can not wait to match it to my pistol lower.

Looking forward to rounds down range soon!

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  0 of 0 people found the following review helpful:
 
5 of 5 300 Barreled upper March 30, 2021
: Darren LaFevers from Us, NC United States  
Great product at a great price. Thanks Mas

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  0 of 0 people found the following review helpful:
 
5 of 5 June 3, 2020
: john smith from LEXINGTON, SC United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 Arrived extremely fast May 22, 2020
: from United States  
Bought while traveling for work, and it went coast to coast in less than a week with standard shipping. The trusted individual I had it shipped to inspected it for me and said there's no blemishes, arrived exactly as described and they test fired it for me with no malfunctions. Can't remember what exact ammo they sent through it but it was 220 grain sub sonics that I had bought before I left. Will update when I get to try it for myself.

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