New 590 A1

mmike87 · #1 09-26-09, 16:19

I snagged me a new Mossy 590 A1 at a gun show today. I was in the market for a SD-type shotgun, my first of this nature.

Decided on a pump for several reasons:

1) Cost
2) Reliability - most all the autos seemed to have some reports of some ammo not cycling, would rather not worry about it
3) Cost

Mine has the 20" barrel - originally wanted the 18.5 but this hold two more shells and side by side with an 18.5 was only very slightly longer - looked like less than 1 1/2 inches. Also have the speed feed stock which holds 4 shells. No pistol grip.

What, if anything should I do for this home-defense shotgun? It already has the metal safety and trigger guard. I definitely want a new forend - I saw a Hogue once and really liked the look and feel of it. Side saddle? Do I need it with the speed feed? Are there any saddles that mount on the right side?

Slings. I'd like a two-point like my Blue Force Vickers sling, mounted in some similar fashion. What are my options there?

Thinking about a light, but I hate the Surefire forend and I thing the bayo lug would have to come off. I don't plan on mounting anything to the lug, but I don't want to grind it off, either.

Any suggestions appreciated. For all practical purposes, this is my first shotgun.

Thanks.

Ak44 · #2 09-26-09, 16:31

I have a 18.5" 590A1, originally I was going to get a knoxx stock (I hate the speed feed stock) and a side saddle but I bought a Saiga 12. Since then I don't have any plans for my pump. Check out GG&G they got some nice stuff for shotguns.

MarshallDodge · #3 09-26-09, 16:55

Congrats on a good fighting shotgun. The typical "shoot it before you modify it" comes to mind.

Seriously, run out and get a couple hundred shells then spend some time with it. Figure out what you like or don't like about it. Take a class with it then spend the money on upgrades.

mmike87 · #4 09-26-09, 17:02

Quote:

Originally Posted by MarshallDodge

Congrats on a good fighting shotgun. The typical "shoot it before you modify it" comes to mind.

Seriously, run out and get a couple hundred shells then spend some time with it. Figure out what you like or don't like about it. Take a class with it then spend the money on upgrades.

Excellent advice ... the only thing I really KNOW I want/need is a sling.

I was looking at Mesa Tactical's QD slings mounts:

http://www.mesatactical.com/index.php?id=60

But I can't find any of their dealers that even list the darn things, and they don't seem to sell direct. I have three BF Gear slings, and I'd like to be able to transfer them from one gun to another (since I can only shoot one at a time, anyway.)

Ak44 · #5 09-26-09, 17:08

http://www.mesatactical.com/index.php?s=7_dealers

Check out Alamo Tactical

mmike87 · #6 09-26-09, 17:23

I just realized that they don't make the mag tube cap with the QD for the Mossberg.

GG&G makes some loop attachments - looks like a good option.

Skintop911 · #7 09-26-09, 18:28

Mossbergh OEM mag springs, especially in the 8rd tube, get soft quick. Recommend you keep several on hand, or upgrade to an aftermarket XP.

I also prefer a high-visibilty follower.

During installation of a side saddle, do be sure to remember that the Mossberg receiver is aluminum.

If you have the GRS system, check the torque on the mounting screws regularly. Some are loctited at the factory. I've found others that are not. If your gun does important things, I would remove, degrease, loctite, and reinstall to be certain it's done right.

Light mount solutions are subjective. I'm a fan of the dedicated forends from Surefire. In the alternative, the railed forends work well too with a quality mount. As a third option, a bit of dremel work will let you bolt a rail section to the forearm.

I'm not a fan of Speedfeed stocks, but they can be useful. I prefer stock mounted pouches.

Many have found shortening the stock to be helpful. I typically take 1-2" off mine.

mmike87 · #8 09-26-09, 18:52

Thanks, I ordered a Wolf XP spring. I've read in several places that the factory spring left a bit to be desired.

Anyone interested in providing an opinion?

http://www.gggaz.com/index.php?id=79&parents=153,172

When they say "left" or "right" do they mean for left or right handed shooters, OR that the loop is on the left or right side of the receiver?

Ak44 · #9 09-26-09, 18:58

I assume they mean for hand...if you are right handed shooter the loop will be on the left and vice versa for a left handed shooter...

mmike87 · #10 09-26-09, 21:08

I noticed the barrel is loose, it wiggles a tiny bit back and forth. Is that normal?

Ak44 · #11 09-26-09, 21:16

Disassemble and reassemble it..It might be the cap on the tube is not tighten down all the way.

mmike87 · #12 09-26-09, 21:18

Quote:

Originally Posted by Ak44

Disassemble and reassemble it..It might be the cap on the tube is not tighten down all the way.

I did that. Twice.

mmike87 · #13 09-26-09, 21:44

If I look in the open chamber, there is about 1/16" play back and forth.

Edit - probably not 1/16, but it's very visibly noticeable, and the barrel makes a good "click" as it bottoms out in either direction.

Thomas M-4 · #14 09-26-09, 21:49

Quote:

Originally Posted by mmike87

If I look in the open chamber, there is about 1/16" play back and forth.

I have a 590 with ghost ring sights no barrel movement. Did you tighten the magazine cap with the forearm slide back?

mmike87 · #15 09-26-09, 21:56

Quote:

Originally Posted by Thomas M-4

I have a 590 with ghost ring sights no barrel movement. Did you tighten the magazine cap with the forearm slide back?

Yes. Does that matter? The cap is as tight as it will go. I turned it pretty tight, as tight as possible by hand.

Dammit, if I have to send this thing back 8 hours after buying it I am going to be pissed.

mmike87 · #16 09-26-09, 22:10

The little ball bearing detent on the barrel assembly comes just short of contacting the teeth on the mag tube cap. I assume they are supposed to contact and the detent helps keep the cap from coming loose?

Thomas M-4 · #17 09-26-09, 22:12

Well the way I reassemble mine is with the forearm slide half way back is to drop the barrel in then pull the forearm all the way to the rear the tighten down the magazine tube clamp hand tight as I can get it [ it clicks like 20 times] .

I have owned 2 mossbergs 1 500 with 2 different barrels and the 590 ghost ring model. I no longer have the 500 but I do not remember any of the 2 barrels having any play?

Thomas M-4 · #18 09-26-09, 22:13

Quote:

Originally Posted by mmike87

The little ball bearing detent on the barrel assembly comes just short of contacting the teeth on the mag tube cap. I assume they are supposed to contact and the detent helps keep the cap from coming loose?

Correct my clicks like 20 times.

Thomas M-4 · #19 09-26-09, 22:41

It sounds like to me that the barrel is not seated all the way down. If I seat the barrel in the receiver with the bolt forward the barrel will not sit all the way in the receiver, I have to pull the bolt all the way to the rear and the barrel will drop down into the receiver. After it drops down with the bolt all the way to the rear I will get 20+ clicks on the detent when I tighten the magazine tube cap.

mmike87 · #20 09-26-09, 23:55

But I am not even hitting the detent. I can see in the chamber it looks like the barrel is seated. If it went in further it would be even looser.

This sucks. So either the barrel of the mag tube cap is out of spec I suspect. Or the mag tube is not screwed in far enough, but it's tight.

Of course the dealer is not from anywhere around here, he was in for the gun show.

EDIT - With the barrel off, there is about 1 or so threads visible when I screw the cap as far as it will go on the mag tube. Thomas-M4, if it's not too much trouble, how does your look in this condition?

I'm suspecting that the cap is just bad, which is good - perhaps Mossberg could just send another one.