Factory HK complete UMP 4 position, machine gun lower. Safe, semi, 2 rnd. burst, full auto.
- Factory HK
- Used/trade-in, good condition, light ware
- Fits UMP machinegun ( Great for post sample builds etc. )
- Could be used for a USC to UMP semi auto conversion ( will require fitting/conversion )
- These are getting very difficult to come by…