Mossberg 935 Magnu - Manual (Page 20)

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FUNCTION TESTING
After performing any work on your firearm such as cleaning, disassembly,
or installation of any accessory, check your firearm for proper functioning
before firing any live ammunition.
Be sure the firearm is completely unloaded by visually and physically
checking the chamber, elevator, and magazine tube.
KEEP THE MUZZLE POINTED IN A SAFE DIRECTION AT ALL TIMES
THROUGHOUT THE FOLLOWING STEPS! FAILURE TO DO SO
COULD RESULT IN SERIOUS INJURY OR DEATH TO YOU OR THOSE
AROUND YOU IF THE FIREARM HAS NOT BEEN PROPERLY
UNLOADED, AND FIRES WHILE YOU ARE TESTING ITS FUNCTION!
1. Move the safety button fully rearward to the “ON” (SAFE) position.
2. Grasp the operating handle and pull the bolt fully rearward. It should lock in
the open position.
3. With fingers and other objects clear of the ejection port, press the bolt release
and allow the bolt to move forward under spring pressure. It should lock in the
fully closed position. Repeat this procedure several times to check for free
movement of the action assemblies.
4. With the action closed and the safety button fully rearward in the “ON” (SAFE)
position, pull the trigger fully rearward. The hammer should not fall (NO FIRE).
5. Remove your finger from the trigger. Move the safety button forward to the
“OFF” (FIRE) position. The hammer should not fall (NO FIRE).
6. Leave the safety button forward in the “OFF” (FIRE) position.
7. Pull the trigger rearward. The hammer should fall (FIRE).
8. Open the action. Move the safety button rearward to the “ON” (SAFE) position.
IF YOUR FIREARM DOES NOT PERFORM AS DESCRIBED IN ANY OF
THE ABOVE STEPS, CONTACT THE FACTORY AUTHORIZED PRODUCT
SERVICE CENTER IMMEDIATELY. DO NOT ATTEMPT TO LOAD OR USE
THE FIREARM.
SIGHT ADJUSTMENTS
BEFORE MAKING ANY SIGHT ADJUSTMENTS:
a. Move the safety button fully rearward to the “ON” (SAFE) position and
keep the muzzle pointed in a safe direction.
b. Open the action, visually and physically check the chamber, elevator, and
magazine tube to be certain the firearm is unloaded.
A. Williams-Style rear sights (slug models only):
Elevation may be adjusted by loosening the smaller of the two screws on the rear
sight base. This will allow the sight leaf base to be raised or lowered by sliding the
base up or down the rear sight ramp. Tighten the screw after adjustment (Figure 16).
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