We go directly to a Generation 3 family photo, featuring the Kriss Vector CRB, SBR and SDP. It’s been a long while since we had any Vectors on our Photo Of The Day. Apart from the looks, what makes them so special? The Vector’s Super V Recoil Mitigation System utilizes a delayed blowback action with a compact bolt carrier group linked to a low-mass slider, which moves along channels perpendicular to the barrel.