A 682L is a very rare gun. It is an engraving and wood upgraded 682. That is probably the original buttstock, but the forend is a replacement. Rich Cole can sell you a correct forend that has a matching checkering pattern to the buttstock. That forend you have is from a later 687 series. Great gun, congratulations.
JR


Be strong, be of good courage.
God bless America, long live the Republic.