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Can anyone let me know if my 870 Magnum is considered an 870 Magnum Duck Gun. Obviously not marked Duck Gun, but is it, or is a Duck Gun marked that way? Thank you in advance.

if you use it to shoot at ducks, it is a duck gun...

other than that, an older gun with a 30" or 28" barrel and a fixed full choke might be considered a duck gun.

I am not positive about the duck gun but if it is a Ducks Unlimited it will have a DU in the serial number.

OK, besides a Ducks Unlimited gun and a gun you use to shoot ducks. The Blue Book of Gun values lists a 870 Magnum Duck Gun but no 870 Magnum. I'm fairly certain it's the Duck Gun, it does have a 28" barrel and mod choke which is consistent, but I'm not sure so I was throwing out there to see if anyone knew for sure. I do appreciate the input though. Thanks.

Is it a 3" magnum model?

The 3" 12ga. came out in 1921 I think by Jim Olin. After that Winchester chambered a model 12 in 3" 12ga. with a 30"bbl full choke. Winchester called it their "Duck Model" I dont believe Duck Model was labeled on the gun itself.

A 3" chamber 30"bbl full choke gun has taken the slang name "Duck Gun" ever since.

There has been a lot of different roll marks on 870 3" guns in both Wingmasters and 'not' Wingmasters over the years. Some marks vary the placement and size of the lettering. Some variations are in the discription of the gun/model itself. The common factor is that the serial number ends in a "M" instead of a "V".

The 870 Magnum Duck Gun was manufactured from 1964 to the present.
3 inch chambers became standard in all 870's in 1985.
A magnum chamber will have an M in the serial number.
You should not shoot 3 inch shells through your gun unless it has a magnum receiver.
Most but not all Duck guns have a camouflage pattern on them.
There are no markings on it besides camouflage that would distinguish it as a Duck gun.
The only way to make sure if it is a Duck gun or not is to call Remington and have them check the serial number.
Their number is 800-243-9700

870 receivers are all the exact same steel receiver, whether they have a "M" magnum serial number or "V" 2 3/4" shell serial number. The only difference in the receiver is in the placement of the ejector with the "M" guns having it moved back a 1/4" to allow for the slightly longer hull of the magnum.

Now the barrels are a different story, and you shouldn't run 3" shells in a barrel that has a 2 3/4" chamber...

I don't want to get into an argument but,
I didn't say you could not .
I said you should not.

No argument here, just posted for clarity. I have seen where people have said there is a 'magnum' 870 receiver and a 'non-magnum' 870 receiver. If you talk to Remington, they will imply that there are two different receivers. Reality is, it's the same receiver, just with the ejector moved back. I am sure Remington implys that to keep people from loading up 3" shells in a gun that has a barrel chambered for 2 3/4"...

Anybody Know why Remington sells an 1100 model 12ga. barrel marked 2 3/4"-3" shells for use on magnum and non magnum receivers, NOTE "non magnum receivers 3" steel shotshells ok" " NO 3" LEADS LOADS" in non magnum receivers? Most magnum steel shotshell loads that I know run higher breech pressures then magnum lead loads, but lead loads do have more recoil do to the heavier shot weight.
I purchase this exact barrel some years ago for my Rem 1100 non magnum receiver and fired many 2 3/4" lead loads and 3" steel shot loads with no issues, I then tested a few 3" lead loads with no issues also and everything went fine.