Comments by "Shawn R" (@shawnr771) on "Headspace-Operated Prototype Rifle - Yeah, it's as Weird as it Sounds" video.

  1. Interesting. A 25mm M242 Bushmaster although electrically driven requires 12mm to 14 mm of barrel recoil to unlock, as a safety. Apparently this was invented long before Hughes Aircraft made the M242.
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