SIG 556 Operators Manual 31 P/N 1511203 VER 12.7.2
• In the final stage of the advance, the bolt head (5) locking
lugs, via the cam, rotate and lock within the monoblock.
• The weapon is ready to be fired.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 31
