A fully functional utility double-barrel shotgun should sell between $150 and $250, depending on condition. Being a 16 gauge will increase the value a bit in some areas of the country and reduce it in other places.
A 1953 JC Higgins shotgun 12 gauge model 20 pump is values at about $150. It was sold by Sears Roebuck.
The Winchester 140 12 gauge has a choke barrel at 28". This is the same choke size as the 20 gauge model.
1956
$1,500
There is a ammo clip for a J C Higgins shotgun model 58324 16 gauge. You can buy it as a replacement part.
You don't give us the model, so it is hard to answer the question. Assuming the gun does not have an obvious adjustable choke, the choke is probably not easily adjustable. A gunsmith can open the choke (from Full to Modified for example) or can install internal interchangeable choke tubes (costs around $125).
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what is a. jc Higgins pump shot gun. model 20-12 gauge worth??
They came in various barrel lengths and choke combinations. If it is not marked on the side of the barrel, you will have to pattern the shotgun to determine the choke
Stevens 947y This shotgun is a Savage 940,940Y,or 940B
When was the J.C. Higgins Model 101.0 12Gauge Shotgun Made
It is not recommended to shoot slugs with a power pack chock on a JC Higgins model.