SIG SAUER SIG516 Rifle - Manual (Page 74)

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9.4. bolt carrier assembly to upper Receiver
1. Position the upper receiver assembly with the open bottom facing upward; and
2. insert the charging handle into the slotted key way of the receiver and push it forward slightly.
3. Take the bolt carrier assembly with the bolt pulled completely forward (unlocked position) and set it into the charging
handle.
4. Simultaneously push the bolt carrier assembly and the charging handle forward until the bolt and the charging handle
lock into place.
FIG 47 reInstallatIon oF the Bolt carrIer assemBly to uPPer receIver