Weapon Flaws (Optional)
You can select flaws from the following list.
Ammo Hog: Double the weapon’s usage. This can only be applied to weapons that have capacity and usage values.
Archaic: The weapon gains the archaic weapon special property.
Cumbersome: Increase the weapon’s bulk by 1.
Low Capacity: Halve the weapon’s capacity. This can only be applied to weapons that have capacity and usage values, and it can’t be applied to weapons that use batteries as ammunition.
Needlessly Unwieldy: The weapon gains the unwieldy weapon special property; this doesn’t increase the weapon’s damage die size.
Source
Starfinder Enhanced pg. 145