Manual

SIG 556 Operators Manual 35 P/N 1511203 VER 12.7.2
TO EXTRACT AND EJECT A CHAMBERED CARTRIDGE
When the rifle is fired, the same gas pressure which drives the
bullet forward also acts through the cartridge case to push the bolt
to the rear. That action causes extraction and ejection of the fired
case. But, when the bolt is operated by hand, there can be a fail-
ure to extract the cartridge from the chamber, or a failure to eject
the cartridge clear of the rifle. These failures usually are the result
of the bolt not being pulled rearward vigorously, coupled with an
accumulation of firing residue in the chamber. From the foregoing
it is clear that the gun user must:
1. Always visually check the chamber after opening the bolt to
eject a chambered cartridge. If the bolt is not vigorously retracted
Removing cartridges from the magazine
does not prevent the rifle from being fired!
When there is a cartridge in the chamber
and the safety lever is in the “F” (FIRE)
position, the cartridge will discharge if the
trigger is pulled. It is absolutely essential for
the user to know how to completely unload
the rifle.
“Completely” means emptying the magazine
and removing a chambered cartridge. The
safety lever should always be in the “S”
(SAFE) position when the rifle is being
unloaded.
THE RIFLE WILL FIRE EVEN
IF THE MAGAZINE IS
EMPTY OR REMOVED
WARNING - UNLOADING
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 35