There are way, way too many gunmakers to list each. For Brit makers, if they are not listed as BV1 or BV2, they are BV3. Simple as that. The BV3 continental makers are listed. If not on the BV3 list, they are BV4. Unnamed guns are BV5. BV5 is sorta the base value of the gun without any name influence. It is based purely on original quality (OQ) and current condition (CC).