Return to 11.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 12.62" M-LOK RAIL

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Quality part Thursday, June 4, 2026 : Steven Vernon from Mount Washington, KY United States   Quality and fitment are spot on. I haven't fired any rounds through it yet, but I really like the look and feel. Packaged very well for shipping. Was this review helpful to you?

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Top tier upper at a bargain price Saturday, December 14, 2024 : Paul from PA, United States   Excellent upper, gassed to perfection very soft shooting with 100 percent reliability after hundreds of rounds.  I now own multiple MAS uppers and they’ve all been flawless signifying excellent quality control.  You can customize your uppers and the pricing is very competitive along with excellent customer service. Was this review helpful to you?

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Outstanding craftsmanship Friday, September 16, 2022 : Kevin Conner from Broad Run, VA United States   Incredibly impressed with the workmanship here. My upper shoots arrow straight. Not only is it impressive functionally, but it just looks great too!  Very happy customer. Was this review helpful to you?

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Tuesday, August 24, 2021 : from New York   I was very impressed on how quickly they were shipped and assembled, this upper seems well built and looks very slick. I can't wait to run it and see how it performs. Was this review helpful to you?

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Friday, May 21, 2021 : Noe Rodriguez II from Dallas, TX United States   Great experience, great product, very fast shipping and delivery. Will definitely recommend to my friends. Was this review helpful to you?

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Keep up the good work freedom fighters! Wednesday, May 19, 2021 : John Accardo from Bellmore, NY United States   Awesome products and service! Thanks guys Was this review helpful to you?

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11.5 inch upper Friday, April 30, 2021 : Glenn Hertel from Russellville, AR United States   Quality parts at a very reasonable price. Hard to beat.. Will buy more. Was this review helpful to you?

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Excellent finish and quality! Saturday, March 27, 2021 : CHAO from Minneapolis, MN   The 11.5 upper by MAS Defense is fantastic. The finish is stunning and quality is superb. I have yet to try it out. Was this review helpful to you?

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Solid product Thursday, March 11, 2021 : Nate from Columbia, SC   Bought before so I figured I’d buy again and still not disappointed. Super fast shipping and quality parts. Just wish they had the BA barrel in stock Was this review helpful to you?

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Complete upper Monday, February 1, 2021 : from GOLD CANYON, AZ United States   Great service and great product. Was this review helpful to you?