Field strip disassembly – SIG SAUER SIGM400 Rifle User Manual
Page 55
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7.0. Field Strip Disassembly
1. Unload and clear the rifle per section 5.0.
2. Ensure the bolt carrier assembly is forward and the fire control selector is placed on SAFE.
3. Press the takedown pin from left to right until it stops (It is held into the lower receiver by a detent and will not pull free
from the receiver).
FIG 27 THE TAKEDOWN PIN AND PIVOT PIN
4. Press the Pivot Pin (front pin) from left to right until it stops at the detent.
5. Separate the upper receiver from the lower receiver.
6. Grasp the charging handle and pull it rearward until it stops.
7. Remove the bolt carrier assembly from the rear opening of the upper receiver.
8. Align the tabs of the charging handle and lift it from the receiver.
Takedown Pin
Pivot Pin
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