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14.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 12.62" M-LOK RAIL
14.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 12.62" M-LOK RAIL
 
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MSRP: $413.00
Our Price: $347.99
SALE PRICE: $297.99

Price with Selected Options: $297.99

Stock Status: In Stock


Product Code: MAS-145N2-MDRL-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
 
14.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 12.62" 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 - 14.5" 5.56 / .223 Barrel. Please see drop down for specs.

3. Handguard - MAS Defense "RIDGELINE" 12.62" M-LOK Free Floating Handguard - (ID 1.25") - Click on the drop down box above to choose from our selection.
4. Gas Block - .750 Low Profile Steel Melonite Nitride Treated Gas Block

5. Gas Tube - Carbine Length Stainless Steel Gas Tube

6. Muzzle Device - A2 Flash Hider

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: 8 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Awesome Upper December 10, 2022
: Dean from Odessa, FL United States  
High quality upper.  14.5" barrel gives great ballistics and accuracy downrange.  With this barrel length it may become my new vehicle weapon of choice.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great uppers August 31, 2022
: Lucas Mullis from Matthews, NC United States  
Upper are built quickly and have a ton of customizable features. My preferred store to buy from.

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  0 of 0 people found the following review helpful:
 
5 of 5 14.5 5.56/.223 barreled upper-mas defense ridgelin January 20, 2022
: joseph piskura from Bridgeport, CT United States  
as always perfect and fast shipping time cant ask for more keep up the great work guys and girls!!!

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  0 of 0 people found the following review helpful:
 
5 of 5 Great parts/ great looking upper January 17, 2022
: Brian Pizarro from Chula Vista, CA United States  
I came across this site as I really like Aero products and the quality. I was surprised to find out they actually make the barrels for Aero, so it was a no brainer.
The owner even called me to tell he had put my parts request together and was being shipped the next day.
I really appreciated that as most places don’t really have any contact with the customer.
I have nothing but good things to say about this company. I will definitely be using them for any future build projects I have!

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  0 of 0 people found the following review helpful:
 
5 of 5 Upper review September 20, 2021
: from , Wisconsin  
I was hesitant at first so I did more research and found that many other reviews confirm Mas is a quality company with decent pricing. I would definitely buy more in the future.

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