The UTG Ops Ready S4 Mil-spec Stock is molded from an impact resistant high-strength polymer. The stock has a minimal bulk profile that is lightweight and beyond Sub Compact size that is ideal for SBRs. The length of the stock is only 4.28" and has 4 position settings. The stock has an ambidextrous sling loop and QD sling swivels for left or right handed shooters as well as an ergonomic slanted cheek rest and rubberized butt pad. Includes a 5.51" removable extended cheek rest. Designed for use with any Mil-Spec buffer tube. Proudly made in the USA.