The Luth-AR “Skullaton” is the ideal buttstock assembly for your favorite carbine rifle. This buttstock is comfortable and lightweight, while remaining aesthetically pleasing! The “Skullaton” is designed to fit both commercial and mil-tech buffer tubes and works with all .223 and most .308 carbine style rifles. Features a bottom picatinny rail for additional accessories Flat set screw allows you to lock your favorite position in while eliminating any rattle Comes with a black medium soft rubber butt plate Uses 4 positions out of a 6 position stock NOT interchangeable with A2 standard buffer tube If you’re looking for a lightweight polymer skeleton stock, the carbine Skullaton stock from Luth-AR is a great option!