Daniel Defense Buttstock/Pistol Grip/Vertical Foregrip Combo Picatinny is a three-piece stock set for AR platforms. Constructed from glass reinforced polymer with soft touch rubber overmolding. Mil-spec receiver extension compatibility. Includes two buttpad options: convex 0.8 inch and concave 0.5 inch. Provides ambidextrous sling connection with limited rotation QD points on both sides of the buttstock. Pistol grip features an oversized trigger guard. Vertical foregrip has soft touch rubber overmolding and a water-tight storage compartment inside the grip. Attachment Type: Picatinny. Compatibility: AR-15 and AR-10 rifles.