I have the stock but not the gun, so I cannot give you a measurement. Best I can tell you is from Wenig website...
"Approximate dimensions for the New American Style are 1-3/8 x 1-3/8 x 2-1/2 x 14-1/4 with a 1/4" offset comb and a 3/8" toe out (no offset at heel)."
Hope this helps.
Paul