Issues with a new Remington 870

[TheKlawMan]

Now after putting 100 rounds throught my new Express I have one, perhaps two, issues with the gun.

The definite problem is with the magazine feed. On two occasions a shell jambed in part way into the magazine as I was loading. Each time I released the factory installed 2 shot extension in order to relase the tension on the stuck shell.

The second time, I unscrewed the extension tube from the collar that trheads onto the magazine tube and it looks ever so slightly out of round at the edge. Thre follower spring looks fine to my untrained eye. I can fill a little edge on the rim of the extension tube with my finger.

A couple of times when I couldn't get more the fifth or 6th round into the magazine, but I hadn't managed to jam the last shell in the gun, I found that by unloading the weapon I was then able to load all 6 in the mag.

What is the fix for this, other than sending the weapon to Remington and waiting god how knows long for it to be returned? My guess is the follower is hanging on the little edge I am feeling.

Should I stone it or call Remington and ask them to send me a new tube? Is part of the problem the stock orange plastic follower because the lip is miniscule?

If it makes any difference, whenever I have been able to shoot to date it is only with one shell loaded for Trap and I only load that through the ejection port.

Hopefully AIPPI will see this, because it is likely the problem is something I haven't even thought of.

[OliveDrab]

step 1
-remove mag tube clamp.
step 2
-remove mag extension (leave barrel nut on)
step 3
-remove mag spring, follower, barrel nut, and barrel.
step 4
-inspect items for obstruction

installation
step 1
-install barrel
step 2
-install barrel nut (alone)
step 3
-insert follower, and mag spring
step 4
-install mag extension
step 5
-install barrel clamp

this is a common problem caused my improper installation of the mag tube. Aippi has a write up on his sight

http://www.aiptactical.com/Page_2.html read under tube extensions...

if your tube has a little burr, id sand it down and if you find bare metal, apply a little cold blue. if you feel your not up to the task id contact remington.

hope this helps! Pm me with any questions and im sure AIPPI will chime in here sometime.

Enjoy
-OD

[TheKlawMan]

When I go to AIPPI's web page and click Tube Extension Kit I get the message "Tube Extension kit 'width' is a duplicate attribute name. Line 1, position 38." He has a video but that is for adding an extension to a 4 shot mag with the detents needing to be drilled out, which is not an issue with mine.

Putting the end of the extension tube under a mag light, I can see one and possibly three places that could be catching on the spring but my guess the follower.

[aippi]

Go to the install and cleaning link to read the proper install for the Remington LE tube extension.

The loading issue may simply be that you are not pushing the shell into the magazine far enough and pulling your thumb out fast enough for the shell stop to catch the shell. You have to push it up in there a ways and pull your thumb out fast.

Sorry about that duplicate video page, I will clean that up.

[TheKlawMan]

Pop It!

Thanks AIPPI. I read the info under install and clean and I not only understand it, which is to be expected as your instructions always seem so clear, but wonder if the sligthly flattened points on the inside of the curvature of the extension are the result of the spring being pinched.

[aippi]

Not sure without seeing them. Can you post a picture. I can't as I am to stupid to figure it out, and please, no one send instructions on how to do that as I have instructions and, did I mention I am to stupid to post pictures.

[ElvenSoul]

Beware RUST!

[OliveDrab]

^^^ must be a Mossberg fan... Rust is a non issue for a gun owner who maintains their armory.

[aippi]

No, Elvensoul made a valid point. The Express matte finish is prone to rust and he was just warning the OP since he posted it was a new Express model. It forms a surface rust that wipes off easy but most people freak when they see. I don't want any rust, so all my weapons are parkerized. In very humid conditions it matters little how you maintain an Express as it is going to get that surface rust. Keeping it oiled and making sure you don't touch the metal after you oil it up for storage helps.

[TheKlawMan]

Not sure without seeing them. Can you post a picture. I can't as I am to stupid to figure it out, and please, no one send instructions on how to do that as I have instructions and, did I mention I am to stupid to post pictures.

It will be difficult to get pictures without a quality macro lense, but I can try to take some with my about to become obsolete camera has a macro function.

[JohnFLand]

I had a problem with the mag tube of a new (2010 vintage) 870 where shells would occasionally stick in the mag tube and would not feed, necessitating removal of the factory 2 shot extension tube. According to my gunsmith, it turned out to be a slightly bent cam "spur" on one action bar that would occasionally catch something (he knew, I don't recall his explanation). He fixed it, and I've shot about 200 shells now with no problem.

[TheKlawMan]

Marks on extension thread tube

Not sure without seeing them. Can you post a picture. I can't as I am to stupid to figure it out, and please, no one send instructions on how to do that as I have instructions and, did I mention I am to stupid to post pictures.

These three pictures are the best I could get of what I will call the crimping at the end of the extension. It also seems that the feeding problem occurs more frequently when the first in is a Winchester PDX1 reload. I first thought the rim of its head had burrs, so I tried another and it made no difference. I think the marks I am seeing are caused by the extractor. Anyway, I don't think they are contributing to the problem.

Theh problem continues, at least with the first being the reload, after installing the extension per your instructions.

Thanks AIPPI.

[TheKlawMan]

As AIPP! responded to the pictures on another thread where the OP had a similar problem I thought to copy that part of he response here for continuity. (Hope I don't mess up the HTML or whatever it is.)

Love them pictures. No problem. Just take a small little hammer, I have a small brass one for this stuff, and tap the bends out lightly. They should stay. I don't think they are enough to cause an issue but I would not want there on my weapon.

When installing a mag tube coupling or mag cap simply screw it down snug as the detent ball will hold it on. You will be glad you did when time to clean the weapon. With that said, last week I had an employee breaking down 20 model 25077's and of those 14 had mag tube couplings that must have been put on with a torgue wrench. I of course complained to Remington as I do about everything. If you get a new one and you can't turn it you can use channel locks but put a strip of rubber or as I do, a strip of webbing around the coupling and get a firm grip. Do not squeeze hard, just a firm grip and break it loose, then remove it by hand.

Mine was not one with an overly tightened mag tube coupling to magazine tube or etension to tube coupling. After trying everything of which I can think, it still hangs up quite often on loading; usually the 5th round. Interestingly, not always at the same point. By that I mean sometimes that 5th round will go in a half an inch and sometimes an inch, but always the same depth per assemblage of the extension tube.

That doesn't mean that if it refuses to take all 6 upon one loading, it doesn't take all if I eject the 4 and reload the same 6.

I would like to fix this myself, but I guess I should give Remingtonn a call in the morning. Perhaps before sending it off to Remington, I will tool around with removing those tiny indentations to the leading edge of the extension tube. I think AIPPI's assesment is correct and they are not the problem but it can't hurt to reduce them. Who knows, maybe Remington will send me a new extension tube. Just shipping the gun back and forth will cost more than a tube.

[TheKlawMan]

Fixed!

I went back and reread AIPPI's simple instructions on installing the factory magazine extension and noticed that I failed to follow them properly.

He says to pop the tube a few times as you screw the extension into the magazine coupling. I had only been popping it jsut as it was a couple of turns from tight.

So I unscewed the extension until it was almost free of the coupling. As I screwed it in I could feel the twisting sping trying to unscrew the extesion. Gave it a few pops on the muzzle end and the spring released. Screwed the extension in a couple of turns. Same thing happened. Pop and spring released. Did it about 3 times and loaded. It not only took 6, but it loaded much easier (meaning it took less force to insert each shell.)

Even after trying it with the reloaded 5 PDX1 and 1 new Winchester (not a cheapy. Actually one of the PDX isn't a reload), I only encountered one problem out of two loading sequences. The 6th didn't want to go. As AIPPI had suggested sometimes cures the problem, I pushed the 5th in a bit deeper and then the 6th went in with no problems. Time for this old guy to do the happy dance.)