a rear cover being mounted on the mount surface of {HEAD ~ the base} and having an outer surface and {TAIL ~ a handgrip} being formed on the outer surface 
a rear cover being mounted on the mount surface of { HEAD ~ the base } and having an outer surface and { TAIL ~ a handgrip } being formed on the outer surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH