Serrated stone points have been documented in a variety of archaeological settings worldwide. In Indonesia, serrated points known as Maros points began to appear during the mid-Holocene as part of the Toalean techno-complex in southern South Sulawesi. Researchers have speculated the functional and cultural reasons behind the emergence of these distinctive artefacts as possible projectile points - an assumption that has yet to be verified by archaeological data. In particular, the edge serration has been suggested to allow for deeper penetration and/or act as barbs to prevent the easy withdrawal of the points from the target prey. In this study, we experimentally tested the functional effects of edge serration on stone arrowheads resembling Maros points when fired using different bow draw weights. We also investigated variation in breakage and impact fracture patterns between serrated and non-serrated points. Our result show that, compared to non-serrated points, the serrated arrows not only deliver deeper penetration, but also require less force to withdraw from the ballistic gel target. However, these relationships are complicated by the inclusion of skin and bone in the ballistic target. The findings demonstrate that the effect of serrated stone points on projectile performance depends on factors such as the projectile delivery system and prey type. Moreover, under identical firing settings, the serrated points develop more variable macro-fracture patterns than non-serrated points, likely owing to the irregular edge morphologies. Taking these results together, we discuss the implications of our experimental study on the appearance of Maros points and the Toalean techno-complex in South Sulawesi during the mid-Holocene.