Doug Dotson wrote:
I carry the Olin 25mm kit. .. The 25mm gun will also accept the 16ga
shotgun shell adapter..

OUCH! Back when American peasants were allowed weapons a friend had a
single shot 12 Ga sawed-off at the pistol grip and fore end. Despite
retaining about half its original weight it was quite punishing to
shoot. I'm not sure which end of a light plastic Olin I'd rather be on
when firing a 16Ga, and this from a nut who's carry gun is a LW 44
Magnum.

Anybody know offhand what "gauge" 25mm equates to?