BRASS DOUBLE ORING CYLINDER HEAD LDT War Interest (v3&2.5) , V2.0 Gearbox's + BRASS NOZZLE : BEASTPRO UPGRADE
If buying for the LDT war interest gearbox this one fits (v3 version) (the one that has the spring retainer and main spring can be changes without opening the gearbox)
Very nice 👍
V2.0 Gearbox setups