"To use the take down disk. Place the firing pin tip into the hole and the firing pin safety shoulders will rest on the disk. Keep the assembly vertical and do not accidentally bend the tip.
Keeping the safety vertical, place your thumb over the safety, grip the bolt sleeve and compress the spring. With the other hand, as soon as the cocking piece turns freely, rotate it 1/4 turn in either direction, lift off, and gently release pressure on the spring.
The bolt sleeve and spring will slide off the firing pin. Turn the safety to the right and remove."
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K98k Mauser Page