DefendAR-15 bump fire stock vs full-auto M4 (accuracy comparison)

YouTubers Four Gun Guys took advantage of an opportunity to test a DefendAR-15 bump fire stock side-by-side against a full-auto M4 in an “accuracy test.” I suspect it might be a little more precise to call it a controlability test, but I’m probably splitting hairs.

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I half expected the bump fire stock to have a much slower rate of fire and therefore more controlability, but I was wrong on both assumptions.

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