Plan: Hellcat rusty knuckles

Plan: Hellcat rusty knuckles is a plan in the Fallout 76 update Steel Reign.

Location
The plan can only be purchased for 600 gold bullion from the following gold bullion vendors:
 * Mortimer, with the maximum Raiders reputation of Ally
 * Samuel, with the maximum Settlers reputation of Ally
 * Regs, after having completed the Secrets Revealed main quest

Unlocks
This plan unlocks crafting of the rusty knuckles mod for Hellcat power armor at a power armor station.