The innovative BLACKHAWK! KNOXX PowerPak System brings a new level of versatility and performance to the SpecOps Stock. This four-piece modular system is designed for rigid and stable use in the toughest of environments. Available in Black or NEXT G1 Camo. Features: High cheekpiece for use with raised optics; low cheekpiece for use with low-rise sights; shell holder with five 12-gauge shells allows for rapid reloads; ambidextrous design; watertight storage compartment for spare CR123A batteries or similar-sized items; can be assembled for left- or right-handed shooters by snapping it onto rear portion of stock; and is designed specifically for use with all versions of the SpecOps Stock, SpecOps Stock Gen II, and the SpecOps NRS.