Bipod for fx Cyclone Airgun

This is my little project of building a bipod for my Fx cyclone Airgun.

Now all parts have been printed and tested.
Parts that is need for this project that you cannot print:
1 25mm Electrical PVC pipe.
1 20mm Electrical PVC pipe.
4 bolts, 4mm diameter, 25mm long.
2 4mm nuts.
2 4mm winged nuts.