Receiver Connection Bolt - Stainless Steel - Tippmann Part #PL-01C SS

The 2 connection bolts in front of the grip screw in to the thread bushing. 2 screws in the back of the grip screw in to the gun body. These hold the grip frame to the gun. Sold individually. This is the stainless steel version

Receiver Connection Bolt - Stainless Steel on the Tippmann 68 Carbine Diagram