I just purchased a Uplander 12 gauge that came with two screw in chokes. Only info I have is on the box where it says MF and CT. Now, the last shotgun I bought, 25 years ago, had no chokes, just the fixed barrel, full choke I guess. I'm assuming the MF means modified but what's the CT? Cylinder ? What would each be best used for? IF I take both chokes out, does that mean I have two cylinder bores? Could someone educate me please.


















































