My observations have been that most 28ga 28" barrels are mod/full. There are exceptions, but they are far & few between. Many of these have had the chokes opened over the years, simply because they were too darn tight from the factory, so when looking at a used gun, it may be marked Mod/full, but you really need to know the actual constrictions for seeing if they have been opened. Personally, I wouldn't hesitate buying a 28" mod/full gun if the rest of it was what I was looking for because the chokes can be opened as needed. This is what I did when I opened the constrictions on it to .005" & .009" and am happy that I did, the gun has served me well ever since.

20ga 28" barrels are easier to find in chokings other than mod/full with many of them IC/Mod.

The fun is in hunt, but you do need to ask the appropriate questions up front before you pull the trigger on the purchase.

Paul, where are you finding the many 20ga. Repros w/28" bbls. factory choked IC/M? Can you link us to a couple of them?

In comparison to 28ga 28" barrels. I have seen more 20ga 28"barrels choked something other than mod/full than I have 28ga ones, but they are still far from common.

I guess I should have been more concise in my statement.

I believe we can agree that we've seen many more 20ga. 28" Repros factory choked Q1/Q2 than we have seen those that were 28" and factory choked IC/M.

As far as the 28ga. guns go, I have pics of the only two that I feel are righteous 28" factory choked Q1/Q2 guns, but do not recall any 28" IC/M. There was one gun about two years ago that we discussed that was choked IC/IC. It has been reported that there maybe more Q1/Q2 guns out there, but so far they seem to be as elusive as the 12ga. 28" factory choked Q1/Q2 guns.

Shown below is one of only a couple of 20ga. Repros w/28" bbls. that I've come across that have been claimed to be factory choked IC/M. But, in each case the choke designation stamps, to my eyes, are very suspect. (Note the choke designation area appears to have been struck off, restamped and no period after IMP).

I would be hard pressed to believe that was the original stamping.

It's pretty obvious the original marking have been ground off & chokes restamped.

Can anyone here show us a 28ga. Parker Repro w/28" bbls., other than the below consecutive numbered pair, factory choked Q1/Q2 or IC/M?

In addition can anyone here show us a 20ga. Parker Repro w/28" bbls. factory choked IC/M?

Oh, one more thing, can anyone here show us a 12ga. Parker Repro w/28" bbls. factory choked Q1/Q2?

Beautiful pair!! Are those yours?

I would buy those guns, or even one of them.

One note to the OP...

I've got a 28ga two barrel set (26" IC/M and 28" M/F). The choke constrictions are more akin to those you would see on a 12ga gun, so they pattern quite tightly. It's not much of an exaggeration to say that you could drive a nail with the full choke barrel.

That said, I prefer the swing of the longer barrel set, and using spreader loads has made it useful on good-flying plantation quail.

Good luck in your search!