SIG SAUER SIG556 - Manual (Page 44)

44 www.sigsauer.com
4.0 Function
4.1 General Weapon Function of SIG556
4.1.1 Ready to Fire
When the rifle is in a “ready to fire” condition the bolt is closed and locked.
• the recoil spring (2) holds the bolt carrier (4) in the front final position, via the gas piston (1).
• the bolt head (5) is rotated by the control cam (3) of the bolt carrier (4) in such a way that its locking lugs (8) engage
in the corresponding recesses of the locking piece (9).
• in this position the hammer (7) is cocked and the release bar (6) is depressed.
WARNING
DO NOT TOUCH THE TRIGGER
UNTIL YOU ARE ACTUALLY READY TO FIRE THE RIFLE.
12SIG599_SIG556MiniManual1511980Rev02.indd 44 9/12/12 12:40 PM