Excuse the newbie question. My barrel had the scope rail already on it out of the box. I tried to check to be sure everything was tight and could not find a wrench to fit the screws. Anyone know what size they are? I lapped a set of Leopold rings and set a Simmons Whitetail Classic 6.5x20x50 scope (the $99 Midway deal) in them. The crinkle finish on the scope matches the texture of the synthetic stock almost exactly. I hope it shoots as good as it looks.