Original Item: Issued with each MG 13. The Ersatzteilkasten (replacement parts case) is plated steel with 3 internal compartments. IMA supplies the case with 2 extractors, 2 ejectors, 2 normal firing pins, 1 training firing pin, receiver hold-open assembly, 2 locking lever hinge pins, mainspring, various other springs, combination wrench/spanner, double-ended screwdriver (the screwdriver handle has a small cosmetic crack, large double-ended receiver brush, a bore brush, a brass oil bottle, two beautifully designed sliding pin drifts, one small and one large, a brass drift, and a complete bolt assembly. Other components may also be included.