Mossberg 590 - Manual (Page 11)

9
Move the forearm/action slide assembly rearward so that the bolt assembly and bolt slide are
three quarters of the way rearward. When the bottom of the bolt slide is aligned with the
clearance cuts in the sides of the receiver, lift the bolt slide upward and out of the receiver
(Fig. 10).
Remove the bolt assembly by sliding it forward and out of the receiver assembly through the
barrel opening at the front of the receiver (Fig. 11-A).
NOTE: The safety button located on the upper rear of the receiver must be fully rearward
in the “ON” (SAFE) position to remove the elevator assembly (Fig.2).
DisassemBly of inTernal receiver componenTs
CAUTION: Pay special attention to the position of the bolt, bolt slide and action slide bar
assembly during this portion of the disassembly, as the parts must be in the same
relationship during reassembly.
Remove the cartridge interrupter from the ejection port side and cartridge stop from the opposite
side. (It may be necessary to tap the sides of the receiver lightly to release these parts) (Fig. 9).