Upper Receiver Barrel

Check for barrel looseness (using hand pressure only). Barrel is loose enough to be moved by hand.

LOWER RECEIVER - Magazine Catch. Check magazine catch for spring tension and retention of magazine. (NOTE: Perform this check with the rifle assembled).

Magazine catch has no spring tension or does not retain magazine.

RIFLE SIGHTS (ZERO ADJUSTMENT). Move front and rear sight to make sure they can be adjusted. Return sights to zero setting of your rifle.

If the sights are damaged, missing, or can't be adjusted.

MAGAZINE CATCH (FUNCTION). Insert magazine into the well. The magazine catch should hold the magazine in place. Pressing the magazine catch button should release the magazine. To adjust the magazine catch, use cleaning rod to press in on the magazine catch button until the left side of the magazine catch sticks out beyond the receiver.

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