I have an Stevens 200 with stock 24 inch varmit barrel (g) serial # 2003- 2010 cf 223. My question is has anybody else have one or heard of one.Ive searched endlessly lol and cant find anywhere on the net.Is it possible its an special order it does have sp stamped by the makers mark.The contour is 1 inch <guessing to 7/8 s. And aso is it worth 350 in almost mint condition with decent scope on it. TY Tj