AK adjustable gas system

[montana]

I just saw this on TFB and thought it was a clever way to moderate "adjust" the gas system for the Kalashnikov action.

http://www.thefirearmblog.com/blog/2018/...as-piston/

[maxxmojo]

Probably be good for a Vepr in 6.5 Grendel, if anything so you don't have to chase your brass 30 feet away.