Hello fellow shooters! I am in a process of buying this stock for my Savage 12 and based on my research this particular model (center feed 223) has a lug screw space of 4.4" now I am very certain that a Savage 12 stock is the same as a Savage 10 stock... If I were to buy this stock at MidwayUSA

http://www.midwayusa.com/product/761...ProductFinding

does this stock comes with a DBM or do I have to buy that separately? Last question is, if I were to purchase this what length of recoil lug screw LENGTH do I need and thread pitch?

Thank you much!!!
Mike