Return to 11.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 12.62" M-LOK RAIL
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5 of 5 Just what I wanted September 3, 2021
: Brian Kliem from Spring, TX United States  
This is the upper receiver that I purchased from MAS DEFENSE and I love what I got. Once more of the upper receivers come back in stock I will definitely be purchasing a third one for my AR-15 rifle. They have a great selection and great choices for upgrades. Great response time for receiving my receiver, which I was happy about. Great customer service kept me updated with any changes which is one thing I look for in a company.

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5 of 5 Beautiful Upper April 7, 2021
: Johnny B from Eagle Pass, TX United States  
So I went with an 11.5 with a 12.62 handguard and a flashcan.. First thing I did was put 200 rounds through it. Upper functioned flawlessly and looks great doing it. It was surprisingly lightweight and I'm excited to put it through it's pace.

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5 of 5 Great Value March 27, 2021
: Thomas Shaver from Ranson, WV United States  
Haven’t shot it yet but looks just as pictured/described. Great value for the money. It was hard to find a reasonably priced upper anywhere and you all shipped super quick. Definitely happy!

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5 of 5 Exceptional product June 15, 2020
: Jonathan Howard from Easley, SC United States  
So I decided I wanted to build an ar pistol and I located the lower I wanted but I was considering multiple options for the upper receiver.  Buddy of mine told me about masdefense so I checked them out.  I love the fit and finish of this receiver.  No flaws on the product, good quality barrel and I love the style of the handrail.  Matched this with a nickel boron bolt and an ambidextrous charging handle.   I’ll be back for my next build.

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5 of 5 June 11, 2020
: Kent Maybank from Indian River, MI United States  
Excellent quality and delivery time was outstanding!!!! I have purchased from other companies and waited weeks to get my order.. My last order from you was placed on Sunday and shipped Tuesday and recieved on friday.. I most definitely will be ordering more.. You guys rocks!!!

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5 of 5 Love it May 28, 2020
: Fred Ayres from Everglades city , FL United States  
Bought every thing I needed from you guys for my first ground up build every thing was perfect absolutely love the finished product took it out and shot it and worked flawlessly would definitely buy from masdefense again

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