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5 of 5 Clean work February 6, 2020
: Michael Stanley from Lynchburg, VA United States  
The team at MAS does really clean work when assembling uppers. I sent one in for a re-barrel so it was already dinged up from 8,000 rounds but they turned it in just a few days and had it back in my hands.

Not to fear if you need some work on a safe queen- every upper that I've ever purchased from MAS arrives without the slightest of tool marks!

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5 of 5 Great value March 11, 2018
: Jeff V  
The upper was shipped fast and performs flawlessly. This is the second upper I have purchased now and would not buy from any where else

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5 of 5 Barrelled 300 blackout upper November 26, 2016
: jason h  
Package shipped right away and got it quick. It's f****** awesome. Very clean and thrilled at the speed in which it shipped. I have 2 other builds currently underway and will use mas again forboth and any of my next builds

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5 of 5 Precision build April 8, 2016
: Jonathan E  
Bought a 223 wylde 18" custom upper.. finally got it to the range with several different brands and bullet weights and im amazed with the accuracy. At 100 yards sub moa.. did 7/8" group with reman ammo bought from freedom munitions.. tried tod some 75 gr provide partizan and even better. . Great company, great products... hoping to order a 300 blackout sometime before hunting season

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5 of 5 dan June 8, 2015
: Dan S  
GREAT quality uppers at great pricing! keep up the good work and I'll keep buying.Also great sales!!!

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5 of 5 Memorial d Special upper June 8, 2015
: John M  
I purchased a barreled upper over the Memorial d Sale. The price was great, the shipping and delivery was fast. The product was as described and though the disclaimer said possible cosmetic imperfections, I could find none.

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5 of 5 upper May 7, 2015
: Jason S  
Great looking upper, no marks on any of the parts from assembly. Mario made sure I chose the rifle length handguard tube to cover the gas block. Quick assembly, USPS dropped the ball on delivery time but thats no fault of MAS Defense. Will order again for sure.

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5 of 5 Custom Build February 7, 2015
: Taylor H  
Great looking custom build. Super fast build and shipping. Ordered Mond night and had it Saturd morning. Have not shot it yet but seems to be great quality. I will be ordering from Mas Defense again.

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5 of 5 Perfection as expected October 18, 2014
: Dwayne S  
Best barrels high quality great prices highly recommended

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