Mossberg AT User Manual

Page 7

Do not load firearm until ready for use! Unload firearm when shooting has
been completed! The safety lever should always be in the “ON” (SAFE)
position whether the firearm is loaded or not.

Check to be certain that the correct ammunition has been selected for use.
Ensure it is the same caliber and type of cartridge as designated on the left
side of the barrel.

The 100 ATR™ has a total capacity of five shots; four in the magazine, one in the
chamber.

Move the safety lever fully rearward to the “ON” (SAFE) position. POINT THE
MUZZLE IN A SAFE DIRECTION! Lift the bolt handle and pull the bolt to the rear
until it stops. Visually and physically check the chamber to make sure it is empty.

LOADING SINGLE CARTRIDGES

You may use your firearm as a single-shot by placing one cartridge at a time directly
into the chamber, or on the magazine platform. Keeping the muzzle pointed in a safe
direction, push the bolt forward and rotate the bolt handle clockwise to its fully down
position. In its forward movement, the bolt will reposition the cartridge from the
magazine into the chamber for firing. The firearm is ready for firing as soon as the
safety lever is moved forward to the “OFF” (FIRE) position.

LOADING WITHOUT CHAMBERING

If you wish to load the magazine but close the bolt on an empty chamber, press up
to (4) cartridges down into the magazine, one at a time. BEFORE closing the bolt,
depress the top cartridge in the magazine with your thumb while slowly sliding the
bolt forward so that it overrides the top cartridge in the magazine (Fig. 7). Keeping
the muzzle pointed in a safe direction, remove your thumb and finish closing the bolt
watching to make sure that no cartridge is pushed into the chamber.

LOADING CHAMBER AND MAGAZINE

If you wish to load the firearm up to its full (5) shot capacity place one (1) cartridge
into the chamber of the barrel. Press up to (4) cartridges down into the magazine,
one at a time. Before closing the bolt depress the top cartridge in the magazine with

Figure 7

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