How to tell the difference between a modified or cylinder bore on a 14" 590A1?

[ekimox]

Pretty much sums it up in the title. I'm buying one from another CGN'r and he isn't sure. I've never seen one so I'm not sure how to tell.

Thanks.

 

[dogzilla]

Usually it's on the side of the barrel, but 14" barrels are usually cylinder

 

[st1264]

They did sell some modified barrel 14" 590A1's, which sold faster than the cylinder bore. It should be listed right on the barrel.



590A1 COMPACT - Class 3 BATF Rules Apply - 12 Gauge, Heavy Wall Barrel, Clean-out Tube, Metal Trigger Guard, Metal Safety

51681-5 –– Synthetic –– 14" –– Bead –– CYL –– 6 (I have this model, most common one sold when they came in)

51682-2 –– Synthetic –– 14" –– Bead –– MOD –– 6

51686-0 –– Speedfeed w/forend strap –– 14" –– Bead –– CYL –– 6 (50686-? is a 590 version, non A1)

51689-1 –– Speedfeed –– 14" –– GRS –– CYL –– 6

51683-9 –– Pistol Grip –– 14" –– Bead –– CYL –– 6

52689-0 –– Speedfeed –– 14" –– GRS (tritium) –– MOD –– 6

 

[ekimox]

Awesome. Thank you.

 

[EL34/6L6]

If you have a picture of the muzzles end, I can compare it to my modified choke 14" 590A1.
As mentioned, it should be labeled on the side of the barrel, opposite the calibre stamp.