I created this because there was no inexpensive bipod available that gave me the height that I wanted for bench shooting my FX Crown without modifying / drilling the gun. This should fit most PCP airguns with a front tank configuration that is about 2.44" in diameter. I lined the tank interface with a single strip of electrical tape to give it some grip on the tank. Works great for me.

Diameter of tank: 2.44"
Height to tank surface: 4.2"

Added other versions:
Tighter= 2.42" Tank Diameter
Shorter = 3.8" Height
Narrower_Angle = 50 degrees instead of 60 degrees (to print on smaller printer beds)

For more info about my setup:
https://cockrum.net/3dp.html

Prusa

I3 MK3S

No

No

.4

50

Printed with a 0.6 nozzle and 3 perimeters