Who else would you trust for aftermarket upgrade parts for your DM then Billy Wing? Billy is a 15 year Pro veteran, and one of the head designers of DYE's extensive gun line.
The B-Wing bolt kit is hand polished and fitted to ensure pro level performance. The mirror like finish allows for a lower LPR pressure which renders less kick. The B-Wing bolt also helps prevent bolt stick, which improves shot to shot consistency.
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All prices are in USD.