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8.3" 9MM AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 9.87" M-LOK RAIL
8" 9MM AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 9.87" M-LOK RAIL


 
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MSRP: $355.00
Our Price: $267.99
SALE PRICE: $242.99

Price with Selected Options: $242.99

Stock Status: In Stock


Product Code: MAS-089M0-MDRL-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
 
8.3" 9MM 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 - 8.3" 9MM NATO (9x19) 1x10 4150 CrMoV Melonite Nitride Treated Steel

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

4. Muzzle Device
- Slim 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: 8 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 great upper and fast shipping August 29, 2022
: Dan from CT United States  
The handguard has a great look yet much lighter than usual quad rails on the market and the FDE color adds the look I was going after , no complaints !

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  0 of 0 people found the following review helpful:
 
5 of 5 8" 9mm upper November 10, 2021
: Stuart Stiles from Flemington, MO United States  
Excellent little upper. Good quality fit and function. Looks amazing. 500ish rounds of steel cased and no issues. Lots of fun to shoot. Wish 9 mil was cheaper.

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  0 of 0 people found the following review helpful:
 
4 of 5 Great February 18, 2021
: from Killen, AL United States  
Good upper only thing is it didn't come with a charging handle or bolt carrier group. Needs to be more bold, didn't see it until my order was already in transit

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  0 of 0 people found the following review helpful:
 
4 of 5 upper reciever February 15, 2021
: Robert Schreffler from Mulvane, KS United States  
although I am satisfied with the product as a whole, the finish on the upper reciever is flawed. the only reason not to recieve 5 stars.

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  0 of 0 people found the following review helpful:
 
5 of 5 9mm upper May 7, 2020
: Ryan Peters from TURBOTVILLE, PA United States  
Looks like a great fit and finish. Love the ridgeline handguard! Mated up good to my 80% lower. Shipping was really fast even during this "pandemic" Will update after firing test. Thank you MAS!!

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