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5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 4.2" M-LOK RAIL
5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 4.2" M-LOK RAIL
 
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MSRP: $300.00
Our Price: $244.99
SALE PRICE: $219.99

Price with Selected Options: $219.99

Stock Status: In Stock


Product Code: MAS-059M0-MDNM-04

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
 
5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 4.2" 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 - 5.25" 9MM NATO (9x19) 1x10 4150 CrMoV Melonite Nitride Treated Steel

3. Handguard - MAS Defense "NERO" 4.2" Slimline M-LOK Free Floating Handguard - (ID 1.25")

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: 4 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Love it February 10, 2022
: Huff from NC ,United States  
Very solid upper, happy with my purchase, paired it with a Mas 9mm bolt and put it on an Aero EPC lower, runs without any issues.

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  0 of 0 people found the following review helpful:
 
5 of 5 May 14, 2020
: James Sherwood from McDonough , GA United States  


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  1 of 1 people found the following review helpful:
 
5 of 5 Great Upper October 25, 2018
: Samuel from LaRue, TX United States  
It shipped and delivered very quick. It is put together solid. I have only taken out once but shot very well. It took my 5 shots to zero in. Once I was dialed in my shots fell on top of each other as expected. I need more time but I can tell my upper will be a solid performer.

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  1 of 1 people found the following review helpful:
 
5 of 5 Top notch equipment October 13, 2018
: from Cleveland, TN United States  
Paired this upper with a Spinta bolt, PSA complete pistol lower, and Metalform mags.
Runs like a Singer sewing machine with brass and steel ammo!

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