The Bedford OY was a militarised version of the Bedford O series lorry capable of carrying three tonnes. A Hotchkiss 3-pdr naval gun mounted in the rear on a pedestal turned it into a self-propelled gun.
| Cost: | 52pts (inexperienced), 65pts (Regular) |
| Weapons: | One light howitzer firing into the rear arc. |
| Damage value: | 6+ (soft-skin). |
Models supplied unassembled and unpainted