What you need.:
15mm pvc T-coupler
15mm pvc tube
20mm conduit end cap/ball valve.
some type of filer/epoxy putty
Ok start with your 15mm T coupler, cut the top part of like so.
Now grab your 20mm conduit, where going to make a feed tube.
cut to the size of how many darts you want the clip to hold, i made mine so it holds 5 darts. then grab your miter box and cut the end of at a 45 degree angle.
So once you have done that, grab your modified T coupler and glue the feeding tube onto it, making a Y. there will be some gaps so what you need to do is fill
them in with some type of epoxy putty or filler, i used plastibond.
After filler has been added, now its sealed!
feeding tube END CAP! either a 20mm conduit cap or a ball valve (your choice). i used neither, what i used was a 20mm conduit coupler sealed of at the top with some clear acrylic (also used as a site to see how many darts i have left in the clip) this gives me some extra space for different size darts note, i added some e-tape around the coupler just for looks
Now add a small piece of 15mm pvc into the back of the clip
so you can coupler it into the weapon of your choice.
Last but not least your barrel, nest your 16mm conduit barrel into a piece of 15mm pvc.
and then sand it out so your darts feed nicely into it, like so.
No place it into the Y coupler and your done!
Add it to the blaster of your choice, enjoy auto loading without flicking the blaster down.