Manual

SIG 556 Operators Manual 38 P/N 1511203 VER 12.7.2
jams, or binds when being chambered or when fed from the
magazine into the chamber, do not attempt force it into the
chamber by pushing or striking the charging handle. Any jam
or feeding problem is a signal to immediately stop using the
rifle until the issue can be determined. Most failures of a
cartridge to feed or to chamber are caused by a damaged
magazine, improper handling, or defective ammunition.
Cartridge jams can result in the potentially dangerous situa-
tion of a cartridge discharging before it is chambered. If this
occurs, the cartridge case will rupture and its fragments will
fly out of the rifle with sufficient force to cause injury. Always
wear shooting glasses and hearing protectors, and keep your
face away from the chamber!
TO MINIMIZE MALFUNCTIONS (“JAMS”)
Malfunctions can largely be avoided by cleaning the rifle per sec-
tion 9.1:
• After each firing session;
• When performance requires switching the gas valve to
position 2;
• Whenever a buildup of firing residue is suspected; or
• Whenever the rifle is exposed to extreme environmental
conditions (rain, snow, freezing temperatures, etc.).
TO DISASSEMBLE
7.0. Field Strip Disassembly
1. Unload weapon (see section 5.0) — visually and physically
check to ensure the rifle is clear of all ammunition;
2. Ensure the bolt is forward;
3. Retract the takedown pin (rear
pin) — this pin is captured and
does not fully remove;
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