My daughter got a Derya 20 ga as a gift from a friend. It came with 5 tubes... her careless father borrowed it for an upland hunt and he somehow lost the 3 unused tubes...
We are managing now with the modified in the upper and full in the lower, but would like to dial it in a bit more for our local duck shooting.
Does anyone know what brand chokes might be interchangeable? I do have calipers and can measure the ones we have, although I don't have a gauge for the threads...