PDA

View Full Version : Mossberg 500 Flimsy Forearm


mister dize
08-25-2008, 6:20 PM
My new Mossberg 500A's forearm lost a pin in the field last weekend at a calguns shoot. This pin holds one of the action slide bars in place:

One side with the pin still in:
12510

Other side, empty hole where a pin should be:
12511

The action slide bar that's been liberated from the forearm:
12512

Sorry about the crappy cellphone camera pictures.

Should I buy a new forearm or try and find a pin? The hole that the pin fell out of seems a little beat up and I am worried that a new pin would just fall out.

The whole setup seems flimsy. I've seen other 500 forearms with no pins visible from the outside. I got mine at Big 5, and I've heard the rumors about Big 5 500's being cheaper but never believed it.

reggie 00
08-25-2008, 6:25 PM
I had the same type of problem with my Charles Daly.

I think i would go to the hardware store and find a spring pin and install it.

I had my rods epoxied in place. They dont seem to going anywhere.

beast556
08-25-2008, 6:39 PM
Call mossberg they will send you one for free. They will just want the serial # from your gun. Use some blue loctite when putting them back in. Ask me how I know this:D

Utha Schleigle
08-26-2008, 3:40 PM
Mossberg Corpoaration first. Then Numrich Gun Parts.

TZL
09-06-2008, 5:52 PM
Where is the best place to get a forearm/slide assembly from a normal moss 500 and not the cheap 500a integrated thing?

ENTHUSIAST
09-06-2008, 5:56 PM
Call Mossy they will make it right, spend the $$$ you saved on ammo. :D

sorensen440
09-06-2008, 6:02 PM
my understanding is mossberg is surprisingly good at fixing there mistakes

Xerxes
09-06-2008, 7:24 PM
my understanding is mossberg is surprisingly good at fixing there mistakes


Who heard Mossberg is calling their saving money to make more profit strategy a mistake?

Patriot
09-06-2008, 7:37 PM
Who heard Mossberg is calling their saving money to make more profit strategy a mistake?

At a certain price point:level of use, these things are to be expected. What differentiates the good products from the flukes is good support.

mister dize
09-07-2008, 8:09 AM
For what it's worth I called Mossberg and they are going to either replace or repair the forearm because the gun is still under warranty. I had to ship it to them, and will hopefully get it back this week.

The Cable Guy
09-07-2008, 1:25 PM
For what it's worth I called Mossberg and they are going to either replace or repair the forearm because the gun is still under warranty. I had to ship it to them, and will hopefully get it back this week.

Which means you'll be getting the same crappy forend that will continue to fall off. I'm just going to buy the standard 500/590 forend.

bohoki
09-07-2008, 1:27 PM
is that a maverick mossberg? cause i thought the mossbergs had a full tube support

the maverick is the econoline

shoupdawg
09-07-2008, 2:55 PM
I was all set to buy a Mossberg 500 from Big 5 last year. I had done a bit of research and passed by Big 5 a few times to handle the weapon. The day I went to get the weapon, they were out and this being my first firearm ever, I couldn't wait. I tried out the remington 870 (which just feels better made) and ended up picking the venerable 870 express for an additional 30 bucks instead of the 500. Aside from the ambidextrous safety and cheaper price, I think the Remmy is just fine. I was originally going to get a Mossy but have decided to purchase my first .22lr instead.

mister dize
09-07-2008, 3:02 PM
Which means you'll be getting the same crappy forend that will continue to fall off. I'm just going to buy the standard 500/590 forend.

blue loctite is cheaper :D

AJAX22
09-07-2008, 3:20 PM
This is the most common mosberg hardware failure.

The only truly permenant fix I've seen is either replacement with the upgraded parts from a 590 or welding the rods in place.

And now you know why I prefer the 870

RANGER295
09-07-2008, 5:45 PM
Just sell it and buy an 870 which is a real gun:p. You may be able to just find a roll pin that you can use.

mister dize
09-21-2008, 4:40 PM
Alright -

Mossberg is moving at a glacial pace, last I heard they haven't even picked up my part at their loading dock. It seems like they're just going to replace or repair a part with a faulty design.

I want to upgrade this to a proper action slide tube. I've found the assembly for sale here:

https://www.brownells.com/aspx/ns/store/catsearch.aspx?c=3664&p=4817

But I don't know if I need the 6 3/4" or 7 3/4" assembly. The gun is a 500A combo from Big5. I'd measure the part, but it's sitting on Mossberg's loading dock collecting dust.

I guess I'll also need some forearm furniture to go along with the tube.

TZL
09-22-2008, 9:38 AM
for a big 5 mossberg 500a with the standard 5 shot tube, i'm pretty sure you'll need:

14455 631-000-295 Action Slide Tube Assembly, 6-3/4"

13488 631-000-291 Action Tube Nut, 6-3/4"

plus your choice of furniture, i got an ATI forward pistol grip !

TZL
09-30-2008, 4:52 PM
I switched out my forearms for a std 500 forearm with metal tube and added a forward pistol grip, so i have an standard 500a sitting around

My new Mossberg 500A's forearm lost a pin in the field last weekend at a calguns shoot.

The Cable Guy
09-30-2008, 7:14 PM
for a big 5 mossberg 500a with the standard 5 shot tube, i'm pretty sure you'll need:

14455 631-000-295 Action Slide Tube Assembly, 6-3/4"

13488 631-000-291 Action Tube Nut, 6-3/4"

plus your choice of furniture, i got an ATI forward pistol grip !

I got a 7 5/6" tube and it fits perfectly. I would recommend this length over the 6 3/4" tube since most after market forends use the 7 5/6" specification.

TZL
10-01-2008, 11:14 AM
yeah I got the 6 3/4 tube and nut, it was alot cheaper, the 6 3/4 was $33 where as the 7 3/4 was $63....I don't see how the extra inch is worth $30

https://www.brownells.com/aspx/ns/store/catsearch.aspx?c=3664&p=4817

Either way i put a ATI forward pistol grip on and it fit the 6 3/4 perfectly, saved $30, but I could see that if you trying to put a wood or other standard style forearm on, it might pose a problem.

mister dize
10-18-2008, 2:57 PM
FINALLY got my forearm back today. Month and a half, not bad, right? :(:confused:

The Cable Guy
10-18-2008, 5:20 PM
FINALLY got my forearm back today. Month and a half, not bad, right? :(:confused:

Did they fix it?

ironcross
10-18-2008, 7:30 PM
I dont get why someone would choose the 500 over the 590. The 590 atleast the one I use hasnt had one hicup and you get 9rds, very easy to do a compleat strip and put it back together. After I did my first full strip it looks like it was built to last. Givin I havnt got a chance to handle a 870 yet so Im not putting it down or anything.

Hope eveything works out :D

CSACANNONEER
10-18-2008, 7:38 PM
I dont get why someone would choose the 500 over the 590. The 590 atleast the one I use hasnt had one hicup and you get 9rds, very easy to do a compleat strip and put it back together. After I did my first full strip it looks like it was built to last. Givin I havnt got a chance to handle a 870 yet so Im not putting it down or anything.

Hope eveything works out :D

9 rounds? Big deal. Legally, you can only have a shotgun capable of containing three rounds when hunting. I've made a lot of meat with 500s. I've also taken a few feathered friends home with my .410 870 though. But, a 590 is not a good hunting gun or a good gun to break clays with. I hope you get it now.

mister dize
10-18-2008, 7:55 PM
Did they fix it?

They replaced the forearm with the same new-style one with the pins holding the action slide bars in place instead of the tube. The pins are bit more recessed than the old one, and I can't wiggle them out.

Hopefully this one will stay together.

pobogo
01-10-2009, 12:26 AM
got mine from www.havlinsales.com. not a big shop but fast cheap shipping and great prices. got my stuff in 2 days and lowest price i could find for the 7 5/8 tube, nut and synthetic forend.

kingjoey
01-10-2009, 8:11 AM
Nevermind ;)

Ballistic043
01-10-2009, 8:15 AM
I dont get why someone would choose the 500 over the 590. The 590 atleast the one I use hasnt had one hicup and you get 9rds, very easy to do a compleat strip and put it back together. After I did my first full strip it looks like it was built to last. Givin I havnt got a chance to handle a 870 yet so Im not putting it down or anything.

Hope eveything works out :D

a gun is a gun is a gun. i have owned 500's and currently own a 590, while the differences are appreciative they are not necessary. the parkerized finish with a bayonet lug and heavy barrel isnt really a priority, neither is a metal tang safety or trigger guard or a heavier receiver stamped "590 A1" but some find coolness factor in it

i am not ragging on 590's- i own one myself and basically because i liked how the stock and GRS sights looked on it. but the point im trying to make is don't be fooled into thinking that buying the better model will rid you of problems in the future.

newjacksm
11-10-2009, 4:49 PM
will the 7 3/8inch sliding action make it less flimsy? I just got my mossberg 500a and it pisses me off how flimsy it is...

DREADNOUGHT78
11-10-2009, 5:07 PM
Me and my bud were out shooting and he was shooting his Mossberg 500 and folowing a shot while racking it the heat shield flew off seems the spot welds failed!

Rob454
11-10-2009, 10:51 PM
...I don't see how the extra inch is worth $30



.

yeah but if you're a gun whore like most of these guys are a extra inch is worth it:D

My mossy 500 home defender has a wiggly forend. ive had that gun for about 14 years and shot countless rounds though it anything from clay 7 1/2 to slug and buck shot. never had a problem

Hayashi Killian
11-11-2009, 9:02 AM
The 590 atleast the one I use hasnt had one hicup and you get 9rds, very easy to do a compleat strip and put it back together.
What? They strip the exact same way.

GrimLock
11-11-2009, 5:42 PM
. I tried out the remington 870 (which just feels better made).Same way I felt when I held the Mossberg 500, I eventually purchased it because it was only $259. Yet it felt so flimsy compared to my 870.

I'm gonna pick up the 500 on Friday from Big 5. Its the 8 shot persuader. Ill most likely relegate it to house duty. While my 870 will go with me where ever I go.

Its my official SHTF rig for now.

coop44
11-11-2009, 6:17 PM
In my extremely biased opinion the 870 is the standard by which all others are judged. Plus the steel reciever makes it a lifetime gun suitable for handing down for generations, parts from the very earliest will fit on the very latest. This shows a design that was good from the outset.

Trap and skeet PROS have worn some out but only after 20 - 30 thousand rounds.

jrr
11-11-2009, 8:41 PM
thats a trip. I used my Mossberg Persuader 8 shot model, the one that they sell at Big 5, at a shotgun course. Put around 250 rounds of slug and buck through it in an afternoon course, dumped it in the gritty dirt at Angeles ranges a few times, and had 0 malfunctions or stoppages of any kind. Meanwhile the other three were using a Benelli, and two 870s. One of the 870s was a custom gunsite model. Both the 870s were jam-o-matics. One jammed up so bad that the instructor had to give him a loaner (which was also a 870 and ran fine). The benelli ran like a champ.

What does that mean? Well, I guess it means buy a gun with a good rep like a Mossberg or 870, and then make it prove itself under harsh conditions before you have to rely on it. Test your equipment yourself, and worry less about the collective opinions on the interwebz.

That being said, whats the deal with the 500a? Is it a different version from the regular 500? Hopefully yours will come back and have no further problems. Just make sure you work it out before you put it in the closet as your HD gun. The Shooters edge shotgun class that Bruce Krell runs at Angeles Ranges is a great place to test your equipment btw. (I have no affiliation with Shooters Edge btw, but i have taken the shotgun course and highly recommend it)

jrr
11-11-2009, 8:47 PM
ah, and the 590 and 500 do strip differently btw. The 590 is designed so that the magazine spring can be removed without disassembling the tube from the receiver.

As for the 500 feeling cheap.... that rattling is what makes it run no matter what you throw at it. A super tight 870 is a fine and accurate gun for the range, but in my (admittedly very limited yet highly scientific :smartass: ) experience the 870 does not perform too well in dusty or sandy conditions. Its the same principle in the 1911. A GI 1911 rattles like a castanet when you shake it. But it will ALWAYS go bang. A match tuned 1911 feels like a solid billet of steel, but get a little grit in it and it jams up.

Anyways, my original advice still holds. Get a gun you are comfortable with that has a good rep, like an 870 or a Mossy, then take it out and work the hell out of it till you are convinced that it will work when you need it.

coop44
11-13-2009, 10:46 AM
....One of the 870s was a custom gunsite model. Both the 870s were jam-o-matics. One jammed up so bad that the instructor had to give him a loaner (which was also a 870 and ran fine). The benelli ran like a champ.

What does that mean? Well, I guess it means buy a gun with a good rep like a Mossberg or 870, and then make it prove itself under harsh conditions before you have to rely on it. Test your equipment yourself, and worry less about the collective opinions on the interwebz.

That being said, whats the deal with the 500a? Is it a different version from the regular 500? Hopefully yours will come back and have no further problems. Just make sure you work it out before you put it in the closet as your HD gun. The Shooters edge shotgun class that Bruce Krell runs at Angeles Ranges is a great place to test your equipment btw. (I have no affiliation with Shooters Edge btw, but i have taken the shotgun course and highly recommend it)

Why people take a perfectly good and functional piece of equipment and and screww it up by customizing it is a freaking puzzle!

coop44
11-13-2009, 10:48 AM
So, you guys go out in the dirt and "play army"? Go try the real thing.

Hayashi Killian
11-13-2009, 12:08 PM
ah, and the 590 and 500 do strip differently btw. The 590 is designed so that the magazine spring can be removed without disassembling the tube from the receiver.
Pulling the magazine spring out is not 'stripping', that is called 'gunsmithing'.

eccvets
11-13-2009, 2:54 PM
I still dont really understand what you mean flimsy or loose. I held a 870 express and it seems just about the same as my 590. One odd thing is that it feels lighter then my 590, is it? I don't really don't like the forearm release for the 870 and the shell loader area where the elevator is in the down position all the time which seems like it would just get in the way (never got to load any, it was at big5 and I was just trying to figure out what was so special about 870's).

-hanko
11-13-2009, 3:30 PM
In my extremely biased opinion the 870 is the standard by which all others are judged.
In my equally biased opinion, I'd suggest you shoot an Ithaca 37 a little...it may change your opinion.;)

-hanko