Mossberg AT User Manual
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The bolt can be removed from the barreled action, and the barreled action can be
removed from the stock, but further disassembly should be performed by a certified
gunsmith only.
Make sure the barrel and receiver are free of obstructions and excessive
lubricant after cleaning. Be sure not to leave cleaning patches or excessive
oil or grease in the bore as they can create dangerous obstructions.
Obstructions of any kind can cause damage to the firearm and may result
in serious personal injury to the shooter and/or others nearby.
Camo guns: Caution should be exercised to avoid exposure of camouflage
pattern to solvents and insect repellants.
FUNCTION TESTING
Check your firearm for proper functioning before loading or firing live
ammunition.
Pull the safety lever fully rearward to the “ON” (SAFE) position (Fig. 1).
Be sure the firearm is completely unloaded by visually and physically
inspecting the chamber and magazine. Keep the firearm pointed in a
safe direction at all times.
Open and close the bolt several times to check for free movement of the action
assembly.
Close the bolt and leave the safety lever in the “ON” (SAFE) position. Pull the
trigger fully rearward. The firing pin should not release.
Remove your finger from the trigger. Move the safety lever fully forward to the
“OFF” (FIRE) position. The firing pin should not release.
Leave the safety lever in the “OFF” (FIRE) position. Make certain the firearm is
pointed in a safe direction. Pull the trigger rearward. The firing pin should
release.
When you have completed the function testing, open the action and move the
safety lever fully rearward to the “ON” (SAFE) position.
IF YOUR FIREARM DOES NOT PERFORM AS DESCRIBED IN ANY
OF THE PREVIOUS STEPS, CONTACT THE FACTORY AUTHORIZED
PRODUCT SERVICE CENTER IMMEDIATELY. DO NOT ATTEMPT TO
USE THE FIREARM.
Firearms are complicated mechanisms. Any modification, alterations, or
improper fitting of parts may result in a dangerous malfunction, damage
to the firearm and injury to the shooter and other persons. The firearm’s
owner must accept full responsibility for the correct reassembly and
functioning of the firearm after any disassembly or replacement of parts.
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