Fast and dirty - unscrew large screw under barrel and small screw behind trigger and remove stock. Push pin at back of receiver out and lift trigger mechanism out of reciever. Pull bolt back slightly and up to remove charging handle and pull bolt back and up and it will come out of reciever - CAREFUL - spring is under pressure and can shoot out or bend if not careful. When reinserting the bolt - place spring with guide rod in bolt and place end in notch at back of reciever carefully compress spring until you can reinsert bolt in reciever then pull slightly back and down and reinsert charging handle. You should not disassemble beyond field stripping as explained above or you risk losing/breaking something. :bthumb: