M5 3pcs Barrel Back Set

Set of three Marksman Barrel Backs (inside diameter .683, .686, .689) for the M5.

Features:

• 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.