Return to 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 15" LIGHTWEIGHT QUAD RAIL - MID-LENGTH GAS
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5 of 5 Great quality and fast shipping January 14, 2024
: from Sinking Spring, PA United States  
Everything came fully assembled/lubed and the finish was perfect. Fast shipping was also a huge bonus

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5 of 5 Excellent customer sevice December 4, 2020
: eric sacchitella from DELMAR, NY United States  
I ordered my upper receiver and everything came perfect! Couldn’t be happier. I also had to send my id and wanted to make sure i was all set and got a very fast response confirming i was good to go. I’ll definitely be ordering more through mas defense.

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5 of 5 Great product December 4, 2020
: Mario Mejia from San Francisco , CA United States  
Love my new upper receiver. It lined up perfect with my polymer lower looks great feels great waiting for the weekend to test

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4 of 5 Awesome upper October 12, 2020
: Edward Epperson from indianapolis, IN United States  
It is a awesome upper the only thing I have to say is the dust cover is not able to close I had to replace it.

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5 of 5 Barreled upper October 5, 2020
: Eric McAlister from Oceanside, CA United States  
First AR build. Really happy with the barreled upper from MAS defense. Can’t wait to take it to the range.

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5 of 5 FANTASTIC product! October 2, 2020
: Martin Stevens  
Second barreled upper I have purchased from these guys. The first one took a little longer as it seemed to have gotten mishandled by USPS but this company was right there to aid me in the search and it arrived today. Nothing but excellent things to say about MAS Defense all around! Will be back for sure. Thanks!

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4 of 5 Great Product. September 11, 2020
: Jamie Tilson from Greeneville, TN United States  
I’m a huge fan of the products they put out. Good quality. Good price. Fast shipping. Good customer service.

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5 of 5 extremely happy with purchase June 21, 2020
: Bryon Drury from Norborne , MO United States  
Ordered complete upper, lower parts kit, and stock. The timeliness of confrontation of order, and shipping was very pleasing. The order came fast than expected and was perfect. This complete upper looked better in person than photos, no blemishes at all.

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5 of 5 Complete Upper June 20, 2020
: James Koch from Wentzville, MO United States  
This was my first experience buying from MAS Defense and I got a Complete upper for a customer's AR build. The price was great,  the quality was amazing,  fast shipping,  and the hand guard looks awesome. The customer loved it and I am thinking about buying one for myself.

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5 of 5 This is for you June 18, 2020
: Jesse Pinto from Grand Rapids, MI United States  
Took a little while but when it finally arrived WORTH IT it loooksks SOOOO AWSOME i fully rexpmmend everyone get these

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