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24
UMP SUBMACHINE GUN
Disassembly of the UMP
NOTE: The UMP is disassembled and reassembled without the use
of tools. The use of force is prohibited. The user of this weapon is
not allowed to disassemble the weapon beyond that which is
covered in this operators manual. Such disassembly may only be
carried out by qualified maintenance personnel.
Safety check
• Put the UMP on “Safe”.
• Remove the magazine.
• Pull cocking lever backwards as far as it will go and engage it in the
indent in the cocking lever.
• Check to make sure the cartridge chamber is empty.
• Swivel cocking lever downward and allow the bolt to move forward.
Disassembly into assembly groups
• Detach carrying sling.
• Unfold buttstock.
• Pull out buttstock locking pin and store in the hole on the buttstock.
• Swivel lower receiver downward and detach (Fig. 26).
Fig. 26 Detaching lower receiver
CAUTION: When detaching the UMP lower receiver during
disassembly, ensure the lower receiver does not rotate more than
80° around the axis where the attachment lugs hook on to the
support bolts. Doing so will severely damage the attachment lugs.
attachment lugs
support bolts