Originally Posted by 3/2 STA SS
Then more than likely it is a '' Fixed '' choke. I believe most of the H&R's are that way in the single shot set up. I had one 20+ years ago in 12 gauge and it did not have screw in/out chokes. It was a $100.00 gun at the time.
I talked to a gun salesman at a shop and he said that its a fixed choke since it said "MOD" on the barrel which means "MODIFIED" Thanks for the help