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Old May 10, 2006, 09:23 PM   #1
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Join Date: May 10, 2006
Location: South Mississippi
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Model 31 disassembly


I am new to the forum and this question has probably been asked before but my problem is the barrel removal for a Remington model 31 shotgun. I believe the Model 31 barrel screws in, can anyone confirm this. Can someone tell me or is there a place where I can download the assembly/disassembly instructions for this shotgun?

Thanks in advance:

Last edited by tinktoy; May 10, 2006 at 09:58 PM.
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Old May 11, 2006, 12:03 AM   #2
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Here's an exploded view of the Model 31:

Here's disassembly for the Model 31:

Open action and unscrew the barrel lock nut (part 15) to the left.

Turn barrel 90% to the left and remove it forward.

Push out trigger plate pin (74) from Right to Left and turn gun bottom up.

Slide trigger plate (42) forward until trigger plate studs (48) align with slots in sides of receiver. If gun is cocked, press action bar lock (56) to release trigger plate before moving trigger plate forward.
Lift trigger plate out.

Lift out left and right cartridge stops (39 & 40) from inside receiver walls.

Move fore end (81) rearward until projection at rear of slide (68) is even with trigger plate holes in receiver sides.

Pull upward on slide while moving fore end forward to free action bar (12) from slide.

With fore end and breechblock fully forward, swing front end of carrier outward until about perpendicular to receiver and press ends together to disengage pivots.
Lift the carrier out.

Press ejector (37) fully into it's slot and lift out breechbolt.

Swing ejector rearward and lift from it's slot in the receiver.

Drift out the firing pin retainer pin (73) from Left to Right, and remove firing pin (750 and spring (76) from back end of bolt.

Drift out extractor pin (78) from bottom of bolt and remove left extractor (79) and spring (77).

Insert small screwdriver in back of right extractor (71) and pry back extractor plunger (69), then push screwdriver forward, pushing extractor out of slot.
Remove extractor plunger and spring (70).

With hammer (57) in fired (forward) position, drift out mainspring pin (46) and remove safety spring (44) and safety plunger (43) from lower hole.

Remove mainspring (64) and mainspring follower (63) from upper hole.
Remove safety (45).

Drive out hammer pin (59) and push hammer forward and down until rear of hammer link (62) is out of slot in trigger plate.

Pull hammer link rearward disengaging hammer from action bar lock spring (55).
Lift away hammer.

Drift out trigger pin (60) and remove action bar lock with spring attached.

Trigger lock plunger (53) and trigger lock spring (54) may be removed.
Rest of trigger plate disassembly is obvious.

Reassemble gun in reverse.
When reassembling mainspring, mainspring follower, safety spring, and safety plunger, it is easier to insert these parts first, then after replacing the mainspring, use a short wood dowel to compress the safety plunger.
Then reinsert safety.

This is the reverse of what seems obvious, which is replacing the safety THEN the spring loaded parts..
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Old May 11, 2006, 06:34 AM   #3
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Join Date: May 10, 2006
Location: South Mississippi
Posts: 2
Model 31 Disassembly


Thank you very much for the post, I think I can go with this. A friend of mine is bringing over a Model 31 that was a Katrina victim and he wants me to help him with the cleanup. I hope it is not to far gone.

Thanks Again:
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Old May 11, 2006, 03:25 PM   #4
Join Date: March 30, 2006
Location: Georgia
Posts: 40
Model 31

This is just about the sweetest pump gun ever.

Lots of rust can be removed with 3/0 steel wool and oil. Pull out the magazine spring and follower. Really make sure that you can smooth up the magazine interior.

If you look around, some parts are available.
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Old November 21, 2011, 10:04 PM   #5
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Join Date: November 21, 2011
Posts: 2
Very nice explanation of the disassembly, however I am having issues with getting the ejector to go back in. Maybe I'm not putting it in the right spot? Any thoughts or suggestions?
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Old November 22, 2011, 12:31 PM   #6
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Problem solved. I figured it out by myself. Gun is working smoother than ever!
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