Plan: 10mm submachine gun drum magazine

Plan: 10mm submachine gun drum magazine is a plan in the Fallout 76 update Nuclear Winter.

Location
The plan is sold by the following vendors:
 * Responder vendor bot
 * Morgantown station
 * Charleston station
 * Raider vendor bot
 * Sutton station
 * Sunnytop station

Unlocks
This plan unlocks crafting of the drum magazine mod for the 10mm submachine gun at a weapons workbench.