SIG SAUER SIG556xi - Manual (Page 54)

54 www.sigsauer.com
13. Pull the gas tube forward out of the gas block;
14. remove the firing pin:
a. depress the firing pin by pressing the rear of the bolt head against a flat surface until
flush and hold;
b. remove the firing pin stud using an aid (small punch, nail, or pencil) and SloWly raise
the bolt head until tension is released on the firing pin spring; and
c. remove firing pin and firing pin spring from the bolt head.
caution
the firing pin is under spring tension when installed in the bolt head. use caution during removal to prevent
injury to yourself and others. the use of eye protection is recommended.
STeP 15B
STeP 15C