Return to 10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 9.87" M-LOK RAIL

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Customer service/shipping December 9, 2022 : Tyler Miller from Round Rock, TX United States   Mas Defense has always done me a solid.  Their products have yet to fail me.  From finding what I want to it hitting my porch, their service is top notch!  When are we going to see any adjustable gas blocks y'all? Was this review helpful to you?

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10.5" 5.56 upper September 1, 2022 : David Stevenson from San Antonio, TX United States   I'm really pleased with the quality of the upper and the shipping process. The only small gripe I have was with the timing of the muzzle device, which is off by only a few degrees but it is noticeable. I will have to fix it myself. Not a huge deal considering the quality of the parts vs the price that I paid. Overall very happy with my purchase and I am already planning to buy more from MAS. Was this review helpful to you?

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Incredibly fast shipping May 13, 2021 : Johnny from NC United States   I ordered the upper, it shipped in less than 24 hrs.  Great quality product and no issues with assembly. Was this review helpful to you?

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Will buy from MAS again April 22, 2021 : P F from FL   Timely shipping, good product, no BS. Was this review helpful to you?

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Purchase and Cancelation. March 4, 2021 : Joe R. from CA, United States   Overall great experience. Fast shipping. Great customer service when I made the mistake of purchasing double items. Thanks again. Was this review helpful to you?

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NERO 10.5” upper February 19, 2021 : JB from United States   In stock, reasonably priced, fast shipping, excellent fit & finish. QD holes a nice surprise. Definitely will order from MAS again. Was this review helpful to you?

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10.5” excellent February 8, 2021 : Natalie from VT   Received my purchased 10.5” barrel upper. Came packaged extremely well there were no cosmetic issues. I am beyond happy with this product and would order from you again. Was this review helpful to you?

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Accurate January 29, 2021 : Pat from Buffalo, MN United States   Used this upper and dropped in a CMMG 22LR conversion into it.  Shooting 1.5" groups at 50 yards with w red dot.  Looks great and functions great. Was this review helpful to you?

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Very happy as always January 8, 2021 : Cameron Zimmerman from Lancaster, SC United States   As always another great product from Mas Defense! Was this review helpful to you?

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Barreled Upper October 21, 2020 : from Sandston, VA United States   As promised, when promised. Fit well when assembled with other parts. Seems great but have not fired it yet. Was this review helpful to you?