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

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0 of 0 people found the following review helpful:

September 11, 2025 : Dustin Drake from Star City, AR United States   The item was excellent. Clean with no tool marks. Came ready to use. Was this review helpful to you?

0 of 0 people found the following review helpful:

10.5 ar upper June 25, 2025 : Dennis Howard from mercer, ND United States   This was my third upper I have bought from MAS, I think their uppers are great, I have a ton of rounds on the other two and have zero complaints they are just solid uppers. Was this review helpful to you?

0 of 0 people found the following review helpful:

Super quick shipping June 6, 2025 : Jaquan Mason from Waxhaw, NC United States   Super quick shipping, excellent customer service, very easy and reliable to order. Was this review helpful to you?

0 of 0 people found the following review helpful:

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?

0 of 0 people found the following review helpful:

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?

0 of 0 people found the following review helpful:

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?

0 of 0 people found the following review helpful:

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?

0 of 0 people found the following review helpful:

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?