Removing Forearm from Mossberg Shotgun

kc5gxc

March 13, 2013 16:32

Howdy. I have a Mossberg 500C pump 20 gauge fairly new shotgun.
I want to remove the forearm. I see it's got a large nut with 2 notches in it that I must unscrew.
Do I have to buy the tool made for this to remove the nut or is there any way to use a common tool to do this ? Any tips on this?
Hate to buy a tool for one use only.
Thanks for the help.
Pete

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  charliemeyer007

  March 13, 2013 16:42

  Got any scrap metal around. Hacksaw, file or grind a notch to fit over the tube end. If you take pump arm out I think you will not need a notch just a flat strap the thickness near notch size.
  
  http://www.gunpartscorp.com/Manufacturers/Mossberg-33399/Shotguns-37443/500-41910/PartsList-34118.htm

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  yoshmyster

  March 13, 2013 19:18

  I use a rubber strap pipe wrench to remove the mag tube. The set came with two straps from OSH but I reckon Home Depot has them as well. They're great for opening tough pickle jars too.
  
  You do know you have to take all the guts out before the forearm/shucker will come out, right?

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  kc5gxc

  March 14, 2013 16:10

  Thanks, I will try to make me a notch filler and get the "action slide tube nut" #25 on the Brownell's parts list.....off.
  All I wanna do is get the forearm off. No guts or anything like that. Looks like this nut is all that holds it on.
  Thanks again.
  Pete

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  mrbruce

  March 15, 2013 06:12

  Make a nut wrench out of a piece of pipe, it will work on the 870's also...
  The nut is the only thing holding the fore end on.....

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  Mark G

  March 15, 2013 06:19

  Take a small punch and hammer and tap it around.

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  llama

  March 15, 2013 06:20

  Many moons ago when I swapped out my pump forearm on my Mossy 12 gauge, I used a friends bike shop with lots of tools, including a spanner wrench that fit perfect. Think he used it for handlebars on 10 speeds....

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  kc5gxc

  March 15, 2013 17:07

  Thank all of you gents for the help. It came off real easily after sticking an allen wrench in each slot and using them as levers.
  Really appreciate the help.
  Pete

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  edgecam

  March 16, 2013 21:28

  http://www.youtube.com/watch?v=AHmZzsLSZLE
  
  
  
  I watched this video when I got my first mossberg 500. Lot of good info in there.

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