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.
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