The barrel of this shotgun simply cannot be removed. It is screwed in and requires a barrel vice and the appropriate wrench. The trigger group can be removed by means of the pin at the back of the receiver, which would allow for easier access to the barrel, but this is a complicated process and is not recommended.
Nothing can be removed from the J.C. Higgins Model 20 to help clean it, unfortunately.
Yes, you can remove the barrel of a model 66 Shotgun!
1955?
Would need the specific model number.
Who made it? Is it a shotgun, rifle or handgun?
hire it done.
1950's-1960's
Post WW2 through the 1970's.
with a torch
Early 1950's
you cannot remove it. it is all in one with the receiver frame
You can request a manual from Remington on their web site.
Which model are you asking about?