J. Kihope shows a third-generation KRISS Vector conversion kit designed for the Action Army AAP-01 airsoft pistol. The demonstration specifically focuses on the integration of the AAP-01 bolt into the Vector’s lower receiver, utilizing gas blowback magazines to achieve a realistic cycling action.

He points out the mechanical functionality of the improved charging handle and the dual-sided bolt catch system. While the charging handle in this prototype is temporarily missing its dedicated return spring, the video illustrates how the bolt can be manually locked back or released using the external side levers.

He conducts a functional test using a gas-filled magazine to prove the system's reliability and successfully demonstrates the automatic "last round bolt hold open" feature, where the bolt catch engages immediately after the final shot is fired, mirroring the operation of a real firearm.