Marksman® Barrel Back Set (.683, .686)
Set of two Marksman Barrel Backs (inside diameter .683 and .686). Set is optimal add to Marksman Barrel giving you an ideal range of bore sizes for paintballs which are used today. A5/Milsig rear thread. Opposite A5/Milsig inside the front thread. Install it between your barrel and marker and extend your stock barrel.
Length 12cm (extends barrel by 9cm)