SIG SAUER SIG556 - Manual (Page 15)

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1.1 Protect Your Eyes And Ears
Always wear safety glasses and ear plugs or “earmuff” type protectors whenever you are shooting. Always make certain
that persons close to you are similarly protected. Unprotected eyes may be injured by powder, gas, carbon residue,
lubricant, metallic particles, or similar debris which may emanate occasionally from any firearm in normal use. Without
ear protection, repeated exposure to shooting noise may lead to cumulative, permanent hearing loss.
2.0. Mechanical Characteristics and Weapon Theory
2.1 Weapon Description
2.1.1 General
The SIG556 ® Rifle is a gas operated weapon with a rotary bolt mechanism capable of semi-automatic, three round
burst or automatic operation. Semi-automatic means one round will fire each time the trigger is pulled until the
magazine is emptied of ammunition. Three round burst means 3 rounds will fire whenever the trigger is depressed and
held. Automatic means the rifle will continue to fire as long as the trigger is depressed or the magazine is emptied of
ammunition. Releasing the trigger in three round burst or automatic fire mode will interrupt the firing cycle. The
rifle is chambered in 5.56mm NATO and is compatible with .223 Remington ammunition.
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