Return to 4.5" AR-9 / AR-15 9MM 1x10 4150 CrMoV MELONITE NITRIDE BARREL

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June 22, 2020 : Wyatt Benda from Pavilion, NY United States   Was this review helpful to you?

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May 14, 2020 : Miller Gallant from Beaufort Sc   Good shipping Beautiful part Was this review helpful to you?

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April 24, 2020 : Jim Gowen from Folkston, GA United States   Was this review helpful to you?

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Outstanding January 25, 2020 : Michael Urquhart from Tucson, AZ United States   Great product! Very fast shipping. Thank you. Was this review helpful to you?

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first time purchase December 22, 2019 : John White from Bartlett, IL United States   first time I got something here, process was fast, shipping very fast. right size barrel for my 9mm build Was this review helpful to you?

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Fast service December 1, 2019 : Michael Maiatico from Ruther Glen, VA United States   Fast and good product Was this review helpful to you?

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Fantastic October 31, 2019 : Brian Roke from Raleigh , NC United States   This will be my third barrel from MAS. I have over 1000 rounds through the first two with no issues. For cost to qualify I have not seen better. I also have the expensive big name barrels too. They are awesome. Other then the cost Was this review helpful to you?

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Great Price! January 31, 2019 : Aaron Pleasanton from Boynton Beach, FL United States   Mas Defense got it right.  I spent about two hours comparing online products and pricing for my AR-9 build.  These guys have all the top quality parts, priced to beat the competitors.  Truly a one stop shop for any custome build. Was this review helpful to you?

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9mm barrel December 15, 2018 : Ray Newcomb from Marietta, SC United States   Great for pistol builds. Never a problem with fit, finish, or threads. Was this review helpful to you?

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Great barrel December 20, 2017 : Damon L   Good barrel, fast delivery and great price and great customer service Was this review helpful to you?