A portable folding field stand for supporting multiple fully assembled paintball markers by their barrels and air tanks in a horizontal, upright position; consisting of a rectangular base section; a barrel support bulkhead; and a tank support bulkhead. The base section is hingedly attached along one edge to the barrel support bulkhead edge and along an opposing edge to the tank support bulkhead. The tank support bulkhead has uniformly spaced tank support yokes, and the barrel support bulkhead has corresponding barrel support yokes. The bulkheads are foldable on the base section between two positions, open for use and closed for transport or storage. Both bulkheads have L shaped profiles that extend the available underside area of support when open and provide a suitcase-like profile to the stand when closed. The barrel support yokes are individually vertically adjustable to accommodate different markers.