Abstract: A dart for a blowgun is provided with a hollow main shaft; a head releasably secured to a front end of the hollow main shaft; and a stabilizer formed with a rear portion of the hollow main shaft and including a plurality of flexible latches and a plurality of gaps each disposed between two adjacent flexible latches. The latches may expand or contract to be in a minimum friction contact with an inner wall of a blowgun in a launching operation.

Abstract: A pressure detection device for a blowgun has a housing and a pressure-sensing unit. The pressure-sensing unit has a pressure sensor integrated circuit (IC) aligned with a pressure-sensing opening of the housing to detect air pressure inside the blowgun and outputting a voltage signal corresponding to the detected air pressure, a micro-controller unit (MCU) converting the voltage signal into a detected datum, and performing calibration and calculation with the detected datum to generate a blow-off pressure value displayed on a display screen, and a power-saving control circuit activating power supply to the pressure sensor IC and the MCU and shutting down power supply thereto when users are done with blowgun shooting.