I tried to look for sist weapon but the only thing i managed to came up with his modifying the name of the bracers and to find of the weapon i mean.
There is an inbuilt system to modify weapons for this reason. Basically, should you purchase a weapon, you have liberty to modify it slightly so long as it is closely related. For example, while you cannot buy a warhammer and call it a spear, you can buy a sword and call it a rapier. It is traditional to buy a higher quality weapon as a base (masterwork or better) to account for the customization.
In your case, gauntlets may work so long as they are of masterwork quality. You can also look into the masterwork dagger and make them punch daggers if that is closer to your desired weapon style.
It is usually best to mention that it was modified somewhere in your item description. You can also get new pictures to clarify exactly what it is that you are using. Keep in mind that a customization that is either overpowered for its price or just not appropriate will cause some problems.