SIG SAUER P556 - Manual (Page 44)

P556 Pistol Operators Manual
44
1511582 VER 08.01.08
TO REASSEMBLE
7.1. Reassembly
The pistol should always be reassembled in the reverse order of
disassembly:
1. Install the firing pin:
a. Insert the firing pin and firing spring spring into the bolt head.
The spring should be at the rear. Ensure that the notch on the fir-
ing pin is aligned with the firing pin stud.
b. With one hand, place the bolt head (firing pin at the bottom)
on a flat surface and depress the firing pin until the notch in the
firing pin is aligned with the hole in the bolt shaft for the firing
pin stud.
c. With the other hand, insert the firing pin stud and release
tension on the firing pin. Ensure the firing pin stud is centered.
2. Install the gas tube:
a. Slide the gas tube (notch down) through the gas block and
insert into the gas tube opening in the receiver.
b. Press the gas tube against the gas block (compressing the stop
pin) and rotate the gas tube to the right beyond ninety degrees
(90°) until the stop pin locks into the gas tube notch.
3. Install the operating rod assembly:
a. Insert the operating rod assembly into the gas tube. Ensure
the end with the charging handle notch enters first, notch facing
down.
b. Push the operating rod in until fully seated. The operating rod
should move freely through the gas tube.