Been building this very slowly for a few years now, and it's finally finished both internally and externally.
It has cost a terrifying amount
Matt W delrin reflex moddy
Leapers bug buster scope
Gmac steel breech, extended probe, extra long bolt handle, ali end cap and stock adaptor.
Tippmann AR stock
Bluefork trigger frame
Josma high flow transfer port
stopped spring guide to reduce hammer bounce
Picatinny rail under gas tube attached to twin barrel bands
grip and angled foregrip from the bay
http://imgur.com/a/Yos8N
It handles like an absolute dream, shooting at about 9.5 FPE, and I can't wait to get it on the range next week