Hitboxing on client

[Reditect]

I can recommend using this:

ZonePlus v3.2.0 | Construct dynamic zones and effectively determine players and parts within their boundaries

[ZonePlus v3] Source Code | Documentation | Playground ZonePlus utilises the new Spatial Query API and Whitelists to effectively determine players, parts and custom items within a zone. You can have as many zones as you like, as large as you like, with zero-to-minimal additional cost to performance. For those looking to benefit from v3 you can find a detailed breakdown here. -- This constructs a zone based upon a group of parts in Workspace and listens …

It has the ability to be used on the Client easily with LocalPlayerEntered and exited events, in addition to a bunch of other helpful things like how accurate you’d like the system/detection to be.