Master-crafted Weapons
A master-crafted weapon follows the normal rules for the converted weapon except that it allows one failed to hit roll per turn to be re-rolled. Such a modified weapon is taken as an upgrade for a weapon already carried by a model and must be represented by a suitably ornate weapon on the model itself. A grenade cannot be master-crafted.
The upgrade cost of 15 points is added to the normal cost of the weapon but only the upgrade cost is taken against the points limit on wargear taken by a model (so a master-crafted power weapon costs 20 points but counts as only 15 points against a character's Wargear limit).