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InRange Sand Testing – AR, M1A, MAS 49/56 (Preview)

As a followup to our mud testing video, we took the AR, M1A, and MAS 49/56 and ran them through a blowing sand and dirt test using a pile of Arizona desert sand and an air compressor. Which one(s) will work and which won’t? Is the M1A really the pinnacle of reliability the internet says it is?

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