Building a mag from scratch, looking for help.

[technic777]

Hi everyone. I am just getting back into paintball and I want to build my own mag(Never owned one before). The deal is I found the exact mag I want at my local shop but they want ~$850 for it. I know I can put one together for less than that, I'm just not sure if I'm missing parts on my parts list. Here is what I have so far.
Intelliframe,a MM rail assembly, ULE body, Xvalve, a gas-thru fore grip, MM sear assembly, some nubbins, bottom bottle adapter,???? Not sure what else I'm missing here. Any help/suggestions would be greatly appreciated.

[GA Devil]

Field strip screw, trigger screw, forgrip (or gas through), grips (of course), lines and barrel. You should be set att that point gun wise. That is of course if you get the xvalve new from agd and comes with lvl 10, if not you will need a bolt assembly too. Off top of my head cant think of anything else you didnt list.

[technic777]

Yeah I can get the Xvalve new and it comes with the level 10. The intelliframe already has some grips on it(might change them later, not worried about it yet tho) So besides the lines and a couple of screws I should be set then? Cool thats what I was hoping for. I think I should be able to pull this off for about 600 - 650. If anyone else notices something I'm missing please feel free to smack me with a cluebat

[Dayspring]

Unless you buy used, you'll end up spending around 700 or so. And that's without barrel.

[Tunaman]

I could build you an all ULE Tunamag for that much too...look me up if you need help building it.