An alternative to the G.I. Stock. Made of tough fiberglass polymer. This is the same material the army uses on their rifles. Our stock adds 3/4" to the length of pull and almost doubles the amount of storage space. This stock also features an "Off Hand" notch to grasp when firing from a prone position using a bipod. A butt plate is not included. The G.I. standard issue butt plate fits the stock.