UTG PRO Model 4 S3 stock kit with 6-position mil-spec extension tube, buffer, buffer spring, tear-drop ring, and castle nut. High-impact polymer with rubberized butt pad and ambidextrous sling loops.
Fits: AR-15
The UTG PRO Model 4 Ops Ready S3 stock represents a thoughtful approach to AR-15 ergonomics and shootability. Molded from high-impact reinforced polymer, this stock prioritizes both durability and user comfort in the field.
Ergonomic Design
Ambidextrous Controls
This kit includes everything needed for installation:
The S3 stock delivers the adjustability modern shooters expect while maintaining the reliability of mil-spec components. Whether you're building a new rifle or upgrading an existing platform, this kit provides a solid foundation for consistent performance across various shooting disciplines.