SIG SAUER SIG 551-A1 Rifle - Manual (Page 19)

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2.1.5 Trigger Casing Assembly and Butt Stock
The trigger casing assembly contains the internal components of the firing and safety mechanisms, bolt catch, magazine
well, magazine release, and butt stock assembly.
The safety lever, located on both sides of the trigger casing, can be set to four positions (Auto or 2 position Semi-only):
Position “S”: The weapon is locked in the safe position.
Position “F”: The weapon will fire semi auto.
Position “3”: The weapon fires 3-round burst. After each burst, the trigger must be released and then pulled again.
Position “A”: The weapon fires in the full auto mode.
leFt SiDe
SaFety leVerS
trigger
trigger guarD
magaZine Well
PiVot Pin
PreSSure
Point SCreW
taKeDoWn Pin
Butt StoCK
PiStol griP
SaFety leVerS
12SIG541_SIG551_A1MiniManual_Rev1.indd 19 2/17/12 2:48 PM