woodlands36

Hello, i have had my cm16 with me for a good year now and i feel that upgrading my inner barrel will be a good idea. So i was wondering if i could use the Madbull 509mm (6.03mm diameter) tightbore and i was wondering if you thing it would work well with my CM16 and also if i should invest in a new hop Rubber and Bucking, any recommendations are welcome Thank you