These cancel your operator card on the spot, regardless of the operations you operated in:
They say those three rings reduce “barrel-whip”, vibration and improve accuracy! ORLY? hahah but at what cost?…. at what cost? Yea I know physics and stuff, but explain to me why every operator on earth isn’t using these if they are actually worthwhile?
$10 over at BowJax if you’re interested. I’m thinking of buying 5 sets and running them up my whole barrel. That’s bound to get me like 0.0000001 MOA accuracy if my math is correct.