This is attached using 3 of the CA-02A bolt found here: CA-02A Bolt
Picatinny Rail on the Tippmann 98 Custom Platinum Series ACT DiagramPicatinny Rail on the Tippmann 98 Custom Platinum Series ACT Pro Diagram
Picatinny Rail on the Tippmann 98 Custom Platinum Series Ultra Basic - Non ACT Diagram