What is with the 4 cc plenum
Well you will be surprised how little we pea shooters actually need,even FAC pea shooters.
When i first got my Vulcan 3 it came with,,,,,,, Eeee i cant say assembled wrong, it was assembled wrong and then also made wrong so not something AGN could weasel out off easy, i firmly believe they knew this at the factory and just went along with it.
So yeah while i like my Vulcan 3 i am in no hurry to get another AGN rifleCUZ that thing, not really something i or others should ever see.
Anyways the result was there was 0 plenum in it, or at the MAX the 3-4 CC there might be in the hole in the end " cap )
Anyway i shot it several times before i saw that and the rifle actually shot pretty good, though i might only have shot pellets.
Anyway going from that 0 plenum or damn close, to the 90 CC or whatever the Vulcan 3 have in small plenum setup, absolutely no change in performance..
I am a bit sad even the rail to put on top of the dove tail rail is a extra, IMO something like that should come with the rifle.
Okay maybe most of us addicts have both dovetail and other scope rings ready at hand, but that's just us.