wa2000 airsoft sniper build help

[twizi]

hey guy i wanted to make a wa2000 airsoft sniper rifle i already have the internols but i need help on how to make a magzine feed tube i am using a 1/4 qev vented by a dcv i just need a way to put a magzine tube that connect 9/32 brakeline to the qev im thinkin a aluminum block the has a t in it one for the qev one for the barrel the other for the mag one thing i experinced with the prototype is the bb rolled down the barrel if it was pointed down i was thinking somthing like a hop up to hold the bb in place and any help would be apperciated if any of u guy want to see some really cool build of the wa200 and some other cool sniper rifle follow the linkhttp://www.ukmonsters.co.uk/oldmadwebsp ... wa2000.htm

[qwerty]

To stop the BB rolling down the barrel you can cut a slit in the barrel and strech an o-ring over it this also acts as a hopup.
I think JSR has a link somewhere but im not sure...
Yeah an alu block would work fine or if not that, you could use epoxy.