UTG PRO S2 Mil-Spec AR-15 Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More - Black (Color: Black)

UTG PRO S2 Mil-Spec Buttstock Kit - All Parts Included - Buffer, Tube, Springs, & More Built for Heavy-duty Use with the Tightest Tolerance Controls to Provide the Most Secure Fit and Function Molded from Impact Resistant High-strength Polymer in Black Mil-spec Diameter Extension Tube Precision Machined from Aircraft Grade Aluminum with Rolled Threads, and [...]