It's been a long 140 hours, where i can't received any D50 pistol for craft exo pistol (btw why he in recipe?). Someone said its pure rng... but it's just rare D50, not exotic weapon and etc. For example i required 2 days for chatterbox, 1 day for merc rifle (i dropped 2 rifles and give one to random teammate). I ask every random teammate for drop D50 for me if they got one...
Remove D50 from craft recipe or increase his drop change. For now you have more chance to drop exotic weapon than rare D50...