Mossberg 500 foreend size identication

[Garrett20]

I bought this at a gun show and the vender said it would fit on my Mossberg 500
...I got it home and I was looking at my gun and there isn't a ring nut at the front of the forend on my and I don't think this will fit...am I right? :(

http://img153.imageshack.us/img153/7505/img2601v.jpg
http://img694.imageshack.us/img694/5346/img2602d.jpg
http://img708.imageshack.us/img708/5441/img2603i.jpg
http://img36.imageshack.us/img36/9435/img2604ml.jpg
http://img687.imageshack.us/img687/1459/img2605c.jpg

[dramey82]

I think thats for the 500 and 500A model.

[Garrett20]

I think thats for the 500 and 500A model.

My gun is a Mossberg 500
http://img191.imageshack.us/img191/8782/img2610y.jpg

[who dat]

I ran into the same thing with mine. I called Mossberg and the CS guy there knew exactly what it was. Apparently there is a change in newer ones and you will need to replace the action slide assembly and/or the magazine tube. I can't remember which without taking it apart.

Anyway, it's a simple and relatively cheap fix. Call them at 203-230-5300.

[Garrett20]

I ran into the same thing with mine. I called Mossberg and the CS guy there knew exactly what it was. Apparently there is a change in newer ones and you will need to replace the action slide assembly and/or the magazine tube. I can't remember which without taking it apart.

Anyway, it's a simple and relatively cheap fix. Call them at 203-230-5300.

I called, I think they are closed right now :(

[who dat]

I called, I think they are closed right now :(
Yeah, even gun guys go home occasionally. Monday morning they will make you happy again!

[Garrett20]

Yeah, even gun guys go home occasionally. Monday morning they will make you happy again!

I just called and they couldn't help me because I didn't know if I needed the short or long tube!

He said you need to ask the vender who I bought it from and I told him I don't remember the vender, it was at a gun show.

So anyone know how to tell if I need a short(6-3/4") or long(7-3/4") tube?

ahhhh that guy wasn't helpful at all

[Garrett20]

Would this forend fit a 6 3/4 inch action tube assembly?
....in other words am I measuring this the right way?

http://img706.imageshack.us/img706/6356/img2629e.jpg
http://img98.imageshack.us/img98/623/img2619u.jpg

[Garrett20]

I think I'm going to order the 6 and 3/4 inch tube...it looks like it would fit my new foreend....I think....I hope it can be returned lol
http://img706.imageshack.us/img706/6356/img2629e.jpg
http://img98.imageshack.us/img98/623/img2619u.jpg

[who dat]

I just called and they couldn't help me because I didn't know if I needed the short or long tube!

He said you need to ask the vender who I bought it from and I told him I don't remember the vender, it was at a gun show.

So anyone know how to tell if I need a short(6-3/4") or long(7-3/4") tube?

ahhhh that guy wasn't helpful at all
My old one had a 6 3/4" tube with the nut removed.

The wood forend was 9" at its longest side.

My new tube is about 7 1/2" without the nut.

My new forend is 7 7/8".

I think he said I had to have the new tube (action slide assembly) because the gun was an older 500A.


I think you need the longer tube, but you should take it apart first IMO.

I hope this helps.

[Garrett20]

...I guess nobody knew
well anyway I ordered the 6 3/4 inch action tube assembly, hope it works out fine.

[Garrett20]

My old one had a 6 3/4" tube with the nut removed.

The wood forend was 9" at its longest side.

My new tube is about 7 1/2" without the nut.

My new forend is 7 7/8".

I think he said I had to have the new tube (action slide assembly) because the gun was an older 500A.


I think you need the longer tube, but you should take it apart first IMO.

I hope this helps.

You have the measure the forend from the inside...I my case my foreend was actuay 7 3/4" long from end to end but as you can see in the pictures the tube wont be going that far and it stops at 6 3/4" so I ordered the 6 3/4"...I'll let you know how it turns out and post pics of the gun after :) and I got a little bit of a discount because I was friendly :) lucky me

oh and you need a different tube depending on the foreend you have, like with a tac star you need the longer tube

[Roundballer]

Why didn't you ask this in the other thread you have going about the same part on the same gun?

http://www.migunowners.org/forum/showthread.php?p=859617#post859617

[Garrett20]

Why didn't you ask this in the other thread you have going about the same part on the same gun?

http://www.migunowners.org/forum/showthread.php?p=859617#post859617

Because nobody knew there so I thought I'd bring it to a different section, I saw "Firearm Identification" and I thought someone here would know...do you know?

[RifleGuy]

Merged duplicate threads. -Mod.

[JohnJak]

Comparison of action slide lengths: top 7-5/8”, bottom 6-1/2” Measure from top of threads to bottom of collar that holds the action bars. This measurement is critical to fit when ordering forearms or stock sets that include a forearm. For the most part, 20-year and older sporting shotguns and new tactical shotguns use the 7-5/8” slide. New sporting models have used the 6-1/2” slide for almost 20 years. There are exceptions, however. To be sure, measure! NOTE: Since 2006, most new 500®, 535® and 835® sporting shotguns with synthetic forearms may not use an action slide tube at all; rather, the pump handle will have two integral bars pinned into the handle itself. If you have one of these, you cannot use a forearm that was designed to go over an action slide tube without first buying the correct length tube and action slide tube nut.
http://i684.photobucket.com/albums/vv205/JohnJak_photos/beforeoldstyle.jpg

[Garrett20]

Comparison of action slide lengths: top 7-5/8”, bottom 6-1/2” Measure from top of threads to bottom of collar that holds the action bars. This measurement is critical to fit when ordering forearms or stock sets that include a forearm. For the most part, 20-year and older sporting shotguns and new tactical shotguns use the 7-5/8” slide. New sporting models have used the 6-1/2” slide for almost 20 years. There are exceptions, however. To be sure, measure! NOTE: Since 2006, most new 500®, 535® and 835® sporting shotguns with synthetic forearms may not use an action slide tube at all; rather, the pump handle will have two integral bars pinned into the handle itself. If you have one of these, you cannot use a forearm that was designed to go over an action slide tube without first buying the correct length tube and action slide tube nut.
http://i684.photobucket.com/albums/vv205/JohnJak_photos/beforeoldstyle.jpg

Thank you!
great post
so I think I ordered the wrong action slide :( I ordered a 6-1/2" and it's in the mail already probably, I ordered it on 5/12/10