{HEAD ~ The color code} in the illustrated example is green for {TAIL ~ the rail assembly} 42 and is indicated schematically by shading 17B on the rail assembly 42 and shading 17A on the lug mount 30 
is green for
{ HEAD ~ The color code } in the illustrated example is green for { TAIL ~ the rail assembly } 42 and is indicated schematically by shading 17B on the rail assembly 42 and shading 17A on the lug mount 30
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH