Return to 7.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
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5 of 5 Great customer service September 28, 2023
: Caleb from Concord, NC United States  
Great customer service great buy all together will be back for more

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5 of 5 Very helpful and everything was shipped quickly! July 8, 2021
: from ,  
Had a special order request that the builder was able to help me figure out.  Everything arrived quickly and exactly as I needed.

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5 of 5 No issues February 11, 2021
: Raphael Soares from Austin, TX United States  
Item was as described, and arrived quickly.

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5 of 5 Awesome product January 29, 2021
: Donald Barr from Ocean Springs, MS United States  
Glad i found these folks, these uppers are top notch, fast shipping too, thanks guys, this is my second one, great quality, reasonably priced as well.

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5 of 5 Great item May 9, 2020
: from WA United States  
Came set up exactly as I ordered it. Looks solid and I like the Mas Defence logo on the upper. Will be ordering again

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5 of 5 Perfect April 29, 2020
: Jessy Lewis from Missouri  
No blemishes at all. Crush washer was a little tight to get off. Other than that. Amazing product for the money!.

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5 of 5 Awesome 5.56 May 31, 2019
: Bob Peacock from VALLEY CITY, OH United States  
Great 5.56 build, super happy!

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5 of 5 Mas defense side charging upper and barrel January 22, 2018
: Rury P  
This is my second upper from MAS. Both are top quality. I recently purchased the side charging upper and it is sweet .i cant wait too finish this build. Thank you MAS will definetly be back again.-rury perez

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5 of 5 7.5 inch barreled upper November 25, 2015
: Scott L  
This is the third upper I have purchased from MAS Defense. Every product purchased is perfect. The first one I purchased was slow to get shipped. Then I got a call from the owner. He told me he had myupper at the range for a test fire and it wasn't running right. He said he was going to build me another one, test it, and when it was perfect he would ship it. He did and it was. Great company!! Great products !!!

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4 of 5 Great Deal March 22, 2015
: Erik P  
Great deal on this item. I am using it to build a short SBR for bag carry. I've got a lot of MAS products and am very pleased with them all.

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