this step is slightly trickier but is still relativly easy on picture 6 and 7 leave out the black Y connecter and i will show you how to connect the parts on the next step. also ignore the string on the block trigger that is for later.
Step 4: The magazine and ram
really obvious if you cant make this im worried just follow the pictures.
connect the parts if you need any help then just ask. the second picture is with the side wall cut away a bit. the third is with it back on. also tie string through the trigger and the block trigger and tie a knot at the right length so that when you pull the true trigger it pulls the block down you may want to add a grey connecter if you want the string to run more smoothly.
Step 6: FIRE!!!!
add rubber bands load the magazine pull back the ram pull the trigger etc etc....