Browning Invector.
I would start my search at Smith and Wesson first.
50-350 usd
Invector is a brand not a choke. Invector is a brand not a choke.
Same choke tube as a 1200 or 1400 pump
There is no choke light in a 1983 chevy, no matter what model you have.
Yes it is full choke
They usually use a modified (medium) choke on the 870, unless it has choke tubes.
A 97 model would be fuel injected, which has no choke.
Measure it, or have a gunsmith measure it, with a choke gauge.
Rem-Choke
choke of sears model 20 12 gage plain barrel shotgun has 3 stars on barrel
The Winchester 140 12 gauge has a choke barrel at 28". This is the same choke size as the 20 gauge model.