haha thanks, so I reckon maybe it's a combination of both - looks more AR15ish, and since it's been retained anyway for that reason, why not stuff the recoil spring in...
Recoil drives back the bolt. Front of bolt is connected to recoil guide.
Rearward motion of bolt compresses recoil spring. Decompression drags guide/bolt back into battery. Like I'd said, wonky...