mossberg 9200 12 ga.

[bkjeffrey]

I recently purchased a Mossy 9200 for $120. Ive read that many folks have had issues with this gun, and that seems to be my case too. So, if anyone has any info or ideas on improving the functionality of this firearm it would be greatly appreciated. I have spent a considerable amout of time and money turning this truck gun into what it is now, but am a bit disgruntled in the operation of it. It seems to have a problem fully chambering a round, and it will often stovepipe with low velocity or low weight cartriges. Thoughts, ideas?

 

[Smitty in CT]

The best thing about the 9200 is that it has a "lifetime guarantee", regardless of who owns it, send it back to Mossberg for a free repair.

If it can't be repaired, they will give you a new Mossberg 930!!

 

[bkjeffrey]

Whoa! I had no idea about that. Definatly something to consider. Thanks alot.

 

[bkjeffrey]

This is a long post, but I feel it may be able to help someone out there. OK. So Ive been at my work bench all day with this 9200. And I think I may have solved a few of the problems with this piece. About 4 hours of work and it seems to working flawlessly, only time will tell. Heres what I did. The first thing I noticed was that as a round was being chambered it would seem to "bind up" and fail to feed as it was about halfway inserted. The bottom half of the entrance to the chamber has a sharp 3 angle machined cut that was basically gripping the round as it was being chambered. Very carefull I used a half round jewelers file to round off this area of the chamber. Then sanded to polished finish with 800grit. Next I Polished the entire chamber using Turtle Wax polishing compound and a 12 ga bore mop attached to my drill at a high speed. Once done I cleaned all the goo out and used a clean bore mop to buff the chamber to a mirror finish. Next I noticed that during chambering the rear end of the shell, "brass", has to ride up the bolt face as it alighns with chamber. The bolt face has a very rough surface which I believe didnt help at all. So starting with 360 sandpaper and moving to 800 grit i smoothed the bolt face. I used a popsicle stick as a sanding block. Once it was pretty and shiny I hand polished it to a high shine. Now it smooth as glass. Next. The operating spring is weak. Remove and stretch. Do the same for the mag tube spring. And while thats out I polished the inside of the mag tube following the same procedure as the chamber. So after all this you wouldnt believe how smooth and fast the action is. Test fired a box of Winhcester white box thats been in the shed for a couple years this afternoon. Ran perfectly. This gun woulda gagged on every one of those low brass rounds before. Im pleased. So, sorry if this post is long but i had to tell someone about it. If any of you has, or knows anyone who has a problem child mossberg 9200 ill be happy to aid them in trying these procedures. Its worth a shot!

 

[10-Ring]

I had one and I liked it. I'm not much of a shotgunner -- maybe shoot trap a few times a year. But this gun worked well the entire time I had it. I ended up using it as trade fodder & now he is enjoying that gun

 

[bannockburn]

I've never had any problems with my Mossberg 9200, at least not to the extent that you had to go through to get yours to function properly. The first time I took mine out, I put 250 rounds through it; just about anything we could find. Field loads, trap loads, high brass, low brass; didn't matter, fed and ejected everything without a single problem. Hope this works out for you, as I think they are a decent shotgun for the money.