SIG SAUER SIG50 - Manual (Page 47)

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10.0 lubrication
1. Wipe the rifle down with a clean soft cloth. a thin coat of light oil may be applied to all steel surfaces. apply gun grease
(non-melting grease, not heavy oil) at the rear of the locking lugs located at the front of the bolt, and the cocking cam
located at the rear-underside. Keep grease from getting into the trigger as this may create an unsafe condition. do not over
lube.
2. When the rifle is to be stored, it should be carefully cleaned and thoroughly oiled. a soft 1” paint brush may be used to
clean dust and dirt from hard to reach areas. The bore should be coated with a very light layer of oil. avoid over oiling the
bore as it will work its way down into the action.
3. When the rifle is to be reused, all excess lubrication must be removed. The chamber and the bore must be thoroughly
cleaned and wiped dry.
noTe: neVer use Wd-40 on any part of the rifle. Wd-40 is a water displacing oil and will dry out, leaving a sticky varnish
behind.