This is a brief list of the custom blueprint components in GROUND BRANCH for defining additional features of your weapons:
GBBarrelComponent ('Barrel'): barrel component
GBExternalMagazineComponent ('MagWell'): magwell component
GBInternalMagazineComponent ('InternalMagazine'): internal magazine component
GBTubeMagComponent ('TubeMag'): tube mag component
GBEjectComponent ('EjectionPort'): eject component
GBSightComponent ('Sight'): sight component
GBRailComponent ('Rail'): rail component