building first Mag

after owning a few mags and building many many cockers, i've decided I want to build a mag from scratch.

can you still order parts from AGD and tunamart?

I'm planning on going with a ule body and RPG frame if I can find one with xvalve from tunamart if he has xvalves still.?

also can I use a classic rail?

Yes, dunno, yes

AGD and Tuna are good sorces for new parts, but you can cruse the forms and get good used parts cheaper. Take your time and look at the parts to figure what you want then pick them up one at a time. It's fun when you find just the right part!