I might be wrong
Gen1 : knob for barrel change, st barrel, no liner, no milled VH
Gen 2: can change liners, SN 183534 and below
Gen 3: as mentioned SN 183535 and up
Mk2: it has mk2 written, different gauges, mag and valvetube
Excellent, thanks! So does that make all "Impact Xs", Gen 3v2?
i got my specific Impact X about a month ago so im assuming Gen3v2.
I'm trying to map my gun to the various "Gen" references used here so i can figure out if/how any given lesson-learned (or whatever) is relevant to my gun. Thanks again!