Based on your picture, you have purchased a Marlin 336CS, not the 336W. The 336W has a "walnut finished" birch stock, and no whiteline spacers. Yours has the whiteline spacers at the butt and pistol grip cap, which indicates that it's a 336CS. I agree with some of the other posters, get rid of the see through mounts. The stock pitch is designed to put your eye slightly above the level of the bore. You need to get that scope lowered closer to the barrel. You'll do much better with the 4X scope than you ever will with the open sights. You should be able to buy a set of Weaver rings and base at your local Walmart for about $16. If your not comfortable mounting them yourself, have your gunsmith remount it for you and bore sight it. Then buy some ammo from him, and get out to the range. I expect that your really going to be happy with that rifle. You got a great deal on it, especially with that Burris 4X scope. Good luck and good hunting.