M4/AR-15 Dirt Test – High Speed Video

Much more to come.

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12 comments on “M4/AR-15 Dirt Test – High Speed Video
  1. Back when I was looking for my first modern carbine, I was dead set against the AR-15. I knew the design well, it had lots of little bugs that I wanted nothing to do with. The bolt would prerotate, the magazines were subpar, the bolt got stressed in the same place it got heated, all of these design issues repelled me from buying an AR of my own.

    Owning and examining several better designs later, my opinion on the AR’s design remains… With the added knowledge that while the AR’s design is fundamentally flawed, there are a gazillion folks who make it, and a distinct subset of those who know have to make a really good rifle. This is not true for other designs, like the AR-180B, which is excellent in concept, but the actual production rifles leave something to be desired. Eventually, I realized that it was either AR-15 or AK-47, and I eventually got an example of both. Today, only the AR remains, because of its superior accuracy and ease of mounting optics.

    Thus it does not surprise me that a well made AR-15, like a BCM, can withstand a dust test of this nature, as a well-made rifle will always trump a poorly made one.

  2. When buried, was the ejection port facing up or down? It seems to me that when folks conduct these demonstrations with the ejection port down, they are cheating. The width of the handguard, forward assist, and Brunton Bump would keep the ejection port elevated, and thus limit the amount of foreign material that could actually infiltrate through the ejection port.

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