If you chop the barrel, you've removed ALL the choke - you can't 'add' an IC choke to it unless you then put it tubes.
You can ream out a tighter choke down to IC quite easily and cheaply - under $50 for sure.
Assuming you're talking about a 37, a replacement barrel in the length and choke you want shouldn't run more than $200. Don't cut the barrel, man.



























