this is my nut cracker gun, it is a real product so thats how i got the idea
instructions are clearly given in download hope u like
so rate it and leave comments
here are some better instructions
step 1 open clear guard (optional)
step2 hold down right arrow key while dragging nut into place
step3 once nut is clamped close the safety guard
step 4 pull back the notch, but not too far and let go
ps. there is already a nut loaded when u download