JeepsAndGuns

They basically loop around the barrel using two tabs. I have one on my 590A1. You can see the tabs on the pictures of them. https://www.midwayusa.com/product/1843264926 I would think they could pretty much be a universal fit to several shotguns as long as the barrel profile is very similar. The tabs could be bent a little for different diameters. The hard part will be finding a factory mossberg one in stock. There are aftermarket ones available, but they do not look as good as the factory mossberg ones.

I ended up just buying the M1 with the short mag tube. I was not having any luck finding the pistol grip stock in stock anywhere. Plus it had the screw in choke barrel. I could find mag extensions pretty easy. The mag tube is two piece like most other shotguns. It ends at the front of the foregrip and it is held on by the mag tube extension/nut. Figured I would update just in case someone else stumbles across this and wonders the same.

So I am looking at a couple older HK marked M1 Super 90's for sale. I am trying to find out about the magazine tubes on them. One has the full length mag tube that is almost the same length as the barrel, and the other has a shorter mag tube that extends only a couple inches past the fore grip. I have a older HK marked M3 Super 90, and the full length mag tube on it, is all one piece. What I am wanting to know, is are the M1's the same way? Is the mag tube one piece, or is it two piece like most other shotguns out there? I tried to search online but did not find a answer, however I did see mag tube extensions labeled for the M1, so that would make me think they are two piece? Reason I ask, is my M3 is HK marked, has the pistol grip stock, ghost ring sights, and full length mag tube, and I want a M1 in the exact same configuration. The M1 I found with the full length mag tube, has the standard/rifle style stock and cylinder bore barrel, while the one with the shorter mag tube has the pistol grip stock, but also has the barrel with screw in chokes (which I really like and want). So I was just curious if the mag tube is two piece making for a easy swap to a full length mag tube on the one that currently has the short tube.

Interesting. But now the difficult part will be finding or figuring out a equil to what they used to glue it on with.

Please do not take this the wrong way, but do you have any proof of this? Have you or someone you know taken the barrel retaining ring off a benelli barrel? Its not that I dont believe you, I just want hard evidence to prove it.

Yes, there is the machining of the new ring, but most good gunsmiths are also machinist, as most all I have seen have lathes and mills. So assuming a new ring could be made, could this be done? So the barrel ring is not welded/brazed/soldered, but instead glued on with a type of compound? Is it something like super JB weld?

I was wondering if something like this could be possiable? What I have: Benelli M3 Super 90, HK marked, 18.5 in ghost ring barrel. What I want: The same barrel but with screw in chokes. Here is the problem: The M3 18.5 in barrel was never offered with screw in chokes (only the longer field barrels were, and I do not want one of those) However, the M1 Super 90 was offered with a 18.5 in barrel with screw in chokes. Looking at pictures, they appear to be identical at the chamber end and will fit the recievers, however the barrel retaining ring is in a different spot on the two. The M3 ring is about 2 inches more forward than the M1 ring, and naturally it is shaped differently. What I am wondering, is could it be possiable to take a M1 barrel in the configuration I want (18.5in, ghost ring, screw in choke) and remove the barrel retaining ring. Then reproduce a copy of the M3 barrel rataining ring and attach it to the M1 barrel? Does anyone know how the rings are attached to the barrels from the factory? It kinda almost looks like some type of solder or brazing. Could something like this be done by a capable gunsmith? Thanks.

Still for sale, added a possiable trade offer.

Still for sale Drop to $1100

Sold, Thanks for looking.

The specific model I am wanting is proving to be quite difficult to locate...... Still looking.

It doesnt have the pistol grip stock, but does have the ghost ring sights. What does he mean by factory mag extension or stock mag tube? Is it not a one peice tube? The nut holding the barrel on look a little different than mine. Edit, just noticed it looks like he is in CA, is this some type of a CA specific model that had a shorter mag tube?

Don't suppose you would want to sell the H&K marked one would you? Sounds like your not as big of a fan of it as the newer one.

Being the one peice mag tube does not really bother me. Mine has it and I have never had a need to remove it. Off topic question, what happened to the trigger group and barrel-to-mag clamp on the middle shotgun in your pic?

Not sure if I am following your question? The factory owners manual for my M3 shows 3 different models. It shows the standard, with the rifle sights and rifle stock (like mine), then it shows the tactical, with the pistol grip stock and ghost ring sights (the one I want) and then shows the model with the folding stock (wich I personally do not care for)