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16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL
16" 9MM BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL


 
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MSRP: $370.00
Our Price: $274.99
SALE PRICE: $249.99

Price with Selected Options: $249.99

Stock Status: In Stock


Product Code: MAS-169M0-MDRL-15

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
 
16" 9MM BARRELED UPPER - MAS DEFENSE RIDGELINE 15" 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 - 16" 9MM NATO (9x19) 1x10 4150 CrMoV Melonite Nitride Treated Steel

3. Handguard - MAS Defense "RIDGELINE" 15" Slimline M-LOK Free Floating Handguard - (ID 1.36")

4. 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: 6 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Love the top notch customer service February 11, 2023
: Richard Morgan from CLINTON TOWNSHIP, MI United States  
Paired this 16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL with an Aero Precision AR15 9mm lower. I took to the range and ran 50 rounds thru it with only two failure to eject. I was running a Aero Precision 7.7 oz buffer and a 308 buffer spring. Was running that because that is what they suggested at Aero Precision. I have a Aero Precision AR15 9mm with a 5.5 inch barrel and had the same problem. The fix was an Angstadt Arms AR-15 9mm 5.4 oz Carbine Buffer Assembly w/ Carbine Buffer Spring, 9mm Buffer Spacer.  Ran about 800 rounds thru the AR15 9mm with 5.5 inch barrel. NO issues. Back to Mas defense 16 inch barrel using the the Angstadt buffer kit. Ran 250 rounds thru it NO issues. Bottom line Mas Defense has great uppers. If you are on the fence like I was. Get off and order your upper today.

Thanks Mas Defence

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  0 of 0 people found the following review helpful:
 
5 of 5 9mm upper June 26, 2022
: Wil Santiago from west haven, CT United States  
MAS' uppers are pure sexiness and super reliable.
They're very well put together, my only gripe is
the packaging that my order came in.

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  0 of 0 people found the following review helpful:
 
5 of 5 Good quality April 30, 2022
: J from ME United States  
Nice upper! Test fired and found I needed longer and heavier buffer. Ordered 8oz 4" buffer from MAS a couple days ago. Should be here soon.

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  0 of 0 people found the following review helpful:
 
5 of 5 Perfect again April 22, 2022
:  
Once again MAS has provided a great product with quick shipping and excellent communication.  I have been wanting to build a 16” 9mm for sometime and knew with MAS I would find exactly what I wanted.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great Upper For The Money March 22, 2020
: UTAH from IOWA  
BETTER LOOKING IN PERSON VERY WELL MADE, IMPRESSED WITH THE QUALITY...FIT AND FINNISH!!

THANK YOU!

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