Go-power has been down and out for a long time. WebCams may still have their grind specs though. Wouldn't hurt to call. My last cam ordered through them was a joke though. Improperly machined and the lady on the phone was a pain to deal with so I ended up just throwing the brand new POS in the trash and calling up DC. You should look at Drag Cartel they have good qc and I've been more than happy with my new cams.