The GrovTec Grovtec Lr Ar Buttstock Push Button Base offers a reliable replacement for AR-15, M16, and select carbine configurations, designed to swap in without requiring modifications to the rifle itself while preserving fit and function. This versatile buttstock push button base integrates seamlessly with existing hardware, providing a secure mounting point for trusted sling systems and improving overall handling on the range or field. The rear push button base is engineered with limited rotation of the swivel to minimize sling twist, enhancing comfort and consistency during rapid transitions and sustained firing. Built for durable performance, it supports steady, repeatable shouldering and tension management, helping shooters maintain a clean alignment and quick target reacquisition. Ideal for tactical, hunting, and recreational shooting scenarios, this part from GrovTec directly addresses the practical need for a dependable, easy-to-install upgrade that preserves rifle balance and reliability. With a compact design that respects existing dimensions, it offers a straightforward enhancement to stock AR-15, M16 and compatible carbine setups, delivering improved sling control and a more streamlined shooting experience without altering the core rifle.