The Reptilia RECC-E Carbine Stock is a premium all-in-one rifle stock system engineered to combine durability, a consistent cheek weld, and collapsible utility. It features an impact-modified glass-filled nylon body molded directly over a 7075-T6 aluminum receiver extension tube to eliminate any wiggle or play. By maintaining a constant cheek weld profile across all five adjustment positions, it provides exceptionally reliable eye-to-optic alignment during dynamic movement. The system comes ready to deploy, completely replacing standard buffer tubes, castle nuts, and endplates to streamline the assembly process. Made in the USA, this lightweight, streamlined tactical buttstock optimizes control, balance, and reliability for hard-use carbine platforms. Reptilia RCS Black Stock 100-416