Tridos Designs AAP-01 Universal Drill Jig for TDC

Only required if you have an aftermarket upper like Black Mamba, FUKU-2, etc. This is a universal drill jig made to work with most aftermarket AAP-01 uppers as it is in the shape of a hop up chamber and mounts using the same screws. This part is NOT required if you are using stock AAP-01 / AAP-01C upper as the kit comes with a drill jig for those uppers.