I have a Tac-One salvaged from a longbow kit, comeplete with all the original parts from AGD. When I went to screw in the basic AGD feed neck into the hole, I was surprised to find that theres no threading in the hole! Is this a quality control problem, or am I overlooking some weird piece of Spec Ops aftermarket thread protector thats been placed into the ULE mainbody? I'm kinda pissed cuz I cant attach anything but a longbow magazine to it right now.

Anyone able to shine some light on this? Ill attach a picture next chance I get