The Ridgeback is the first composite stock to fully support the M-Lok system. It comes with a total of 12 slots that you can attach any M-Lok compatible accessory. Another first in its class is the embedded bubble level. The bubble level is guide to assist you in ensuring that your rifle is level to the ground and not canted. At longer distances, rifle cant can dramatically affect accuracy. Grayboe has taken the standard cheekpiece and thrown it out the window. We have redesigned the cheekpiece on the Ridgeback to eliminate all internal hardware. This allows for more reliability and big savings. Of course, all of the other standard features are present in a good tactical stock: adjustable length of pull to allow comfort for all sized of shooters, vertical pistol grips and butt hook to ensure a tight fit into your shoulder and flush cups for quick detach sling mounting. The fore end of the stock was designed specifically to ride nicely on a bench or a bag and to be ideal for the competitive PRS or match shooter. All Grayboe stocks are made with the highest quality composite ingredients, specifically formulated for the purpose of accuracy, comfort and reliability for your firearm.