Comments by "Colonel K" (@Paladin1873) on "Improving the AR-15: The HK416 A5 with firearms expert Jonathan Ferguson." video.

  1. Watch how Jonathan carefully avoids the dreaded "what constitutes a piston" argument on ARs. Here's a thought; isn't every reciprocating bolt a piston? Egad, the Mauser 98 is piston operated! Up next, the never ending anti-bounce device/rate reducer argument on AKs.
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