Return to 10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS RIDGELINE 12.62" M-LOK RAIL

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May 16, 2023 : Jeff L from MI United States   Will not be disappointed. Fit and finish are perfect. Was this review helpful to you?

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VERY HIGH QUALITY! January 7, 2022 : DUSTIN FRANKE from Madera, CA United States   I am extremely happy with this 10.5 " upper receiver! The FDE is clean and smooth. Everything is assembled properly and functions well! The overall quality is excellent and well priced! The upper got all the way here to California quickly with no hassle.  Thanks again and look forward to ordering more products from you guys . Cheers! Was this review helpful to you?

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Awesome upper receiver December 25, 2021 : Brian Johnson from Knox City, TX United States   Was a tight fit on my Sco-15 lower receiver but once on it looks great, very satisfied with my purchase,  fast shipping , love the look of the Mas Defense 12.62 rail very different from all the other rails i have looked at , but I will be purchasing more in the future , thanks Mas Defense!! Was this review helpful to you?

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very happy December 15, 2021 : Thomas DAVIS from TRACY, CA United States   I built my ar years ago and was never happy with it until now. This new upper is so perfect thanks Mas Defense!! Was this review helpful to you?

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Pistol upper October 26, 2021 : Brian Edwards from Coeur D Alene, ID United States   Great product and turnaround time. Buy again without hesitation Was this review helpful to you?

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September 29, 2021 : Nakiea Wearins from North Carolina   Was this review helpful to you?

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Great Upper Assembly July 14, 2021 : from Oakdale, CA United States   Love this upper, shoots well and looks killer! Will be back for more. Was this review helpful to you?

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Satisfied July 8, 2021 : Tyler Bolton from Timnath, CO United States   Great product I love it Was this review helpful to you?

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10.5 upper April 30, 2021 : from Gastonia, NC United States   This thing looks nasty...building it for a buddy of mine and he's super excited to get it Was this review helpful to you?

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Field testing great November 3, 2020 : Thomas Harnett from Middletown, OH United States   Field tested with excellent performance Was this review helpful to you?