The Mk11 bottle regulator screws in-between the buddy bottle / air bottle with its male M18X1.50mm pitch thread and your rifles action block via screwing it to a paintball nose adapter (you can use the original one supplied on your RTI regulator, or buy what sort you want from a reputable paintball ..
The Mk11 bottle regulator screws in-between the buddy bottle / air bottle with its male M18X1.50mm pitch thread and your rifles action block via screwing it to a paintball nose adapter (you can use the original one supplied on your RTI regulator, or buy what sort you want from a reputable paintball ..