Return to 5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 7.25" M-LOK RAIL
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  0 of 0 people found the following review helpful:
 
5 of 5 Second Purchase - Lifetime Customer May 5, 2023
: Adam Lawson from Thomasville, GA United States  
I first bought from MAS when I wanted to shorten my work gun. After loving that purchase, I came back for my first build. As soon as I clicked off safe on the range, I knew I'd made the right decision. Everything that comes from here is quality, so you won't be disappointed. I'll definitely be coming back for future needs.

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5 of 5 Fantastic company February 25, 2023
: Elias Gonzalez from Nampa, ID United States  
Everything was fantastic from how fast my upper shipped to the quality of everything. Will order again.

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5 of 5 Upper review December 7, 2022
: Davon Larkins from Detroit, MI United States  
Upper came in time clean and flawless will shop again

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5 of 5 Awesome upper! December 10, 2021
: Nicholas Golden from Columbia, SC United States  
It was looks and runs even better than I expected. The laser engravings make it stand out even more

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5 of 5 Quality/prompt April 10, 2020
: Chris Rammage from Arlington, WA United States  
As I have not finished build I can't say anything about functionality but after a detailed inspection the upper I ordered looks to be very good quality. Also it shipped very fast, I had it in about a week. Fantastic for the situation we find ourselves in right now. I will be ordering from them again.

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5 of 5 So Far So Good December 13, 2019
: Dean R from YORK, PA United States  
Haven't fired the upper yet, but I did mount it on a lower to cycle some rounds through it using a bolt & charging handle from another 9mm upper.   Seemed to feed and eject fine.
Will probably be a little while till I gather the rest of the parts needed to complete this build.

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5 of 5 September 15, 2019
: Karl Fillings from Raeford, NC United States  


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5 of 5 Couldn’t have asked for better January 27, 2019
: Matt Talbert from Albemarle, NC United States  
I was skeptical at first but for the price of a barreled upper I couldn’t be more impressed.. I will be buyin another for my 300blk in the future.

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5 of 5 The Best!!! October 3, 2018
: Carolina Defensive Firearms Training from Charlotte, NC United States  
Cannot beat the quality  of these uppers, MAS Defense made it exactly how I wanted it for a fantastic price!!

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