Mossberg 590 - Manual (Page 10)

8
590 ® and 835 ® Unscrew the magazine cap by turning it counterclockwise.
models:
Remove the barrel from the receiver with a gentle back-and-forth rotational
movement while pulling the barrel out of the receiver assembly.
500 ® , 505 ™ and Loosen the takedown screw by turning it counterclockwise until the screw
535 ™ models: threads are completely disengaged from the end of the magazine tube
(Fig. 7).
Remove the barrel from the receiver with a gentle back-and-forth rotational
movement while pulling the barrel out of the receiver assembly.
Trigger housing assemBly removal
Position the shotgun on a clean surface with the trigger guard upward. With a blunt object (no
greater than 3/16” [4.76 mm] diameter), push out the small diameter trigger housing retainer pin
located on the side of the receiver, approximately a 1/2” (12.7 mm) below the rear of the trigger
guard (Fig. 8).
Remove the trigger housing assembly by lifting the rear portion upward first.
The trigger housing assembly is a complex assembly and must not be disassembled.
Disassembly should only be performed at an authorized Product Service Center or by a qualified
gunsmith.
Do not pull the trigger and allow the hammer to fall when the trigger housing assembly
is removed from the receiver. To do so may result in personal injury and/or damage to
the assembly.
CAUTION: Field disassembly is now complete. The firearm should not
be disassembled any further for routine cleaning or maintenance.
Further disassembly should only be performed at an authorized Product Service
Center or by a qualified gunsmith.
CAUTION: Before performing any further disassembly, take time to study how the internal
components are arranged inside the receiver.