I got a slight problem fellas. My Mossberg 535 is threaded for Winchoke-Invector. I bought a IC 660. When I try to screw it in, it always gets super tight. So I unscrewed it and cleaned it throughly. It still is sooo hard to screw in. Can you tell me whats wrong?
Look at the choke to see if the thread part looks like the stock choke. I have saw this with the browning more then other guns. Just had a guy call with two brownings. Choke fit one but not other one. So if stock choke looks the same and it will work call them they will make it good.
Other than what the SumToy man said, you can try some grease on the threads to make it easier to work.