Hi, I printed a SR-15-DR lower that came out pretty nice and I'm looking forward to building it. Will the standard SR-15 lower kit and assembly video work for it? I couldn't find a build video for the DR (but I might not have looked hard enough). I don't see that there's a SL-15-DR lower kit offered.
Also, there's a part in the DL reinforcement kit whose purpose is not obvious. 
Hopefully these pictures will upload.
AW
