The FAB Defense FXGLSHOCKCP GL-Shock CP Buttstock for AR-15/M16/M4 delivers the first functional recoil-reducing collapsible stock designed for AR-15 carbines, combining MIL-SPEC reinforced polymer with steel hardware to provide durable performance under demanding use. This recoil-reducing stock helps shoot faster and more accurately by minimizing muzzle rise and offering an auto-tensioner for a no-rattle fit on both mil-spec and commercial tubes, while the adjustable cheek-rest ensures optimal optics alignment. With five sling attachment points, including two quick-release options, it accommodates versatile carrying setups, and a built-in storage compartment keeps batteries or parts readily accessible in the field. The comfortable rubber buttpad delivers traction against body armor and a streamlined shape minimizes snagging on gear. Compatible with 5.56 and larger calibers, including M4/AR-15 platforms, .308 AR-10s, and Mako shotgun kits, this buttstock also features a patented system for enhanced recoil control and muzzle-rise reduction, ensuring smoother follow-up shots. The FXGLSHOCKCP blends practical ergonomics with robust performance, making it a solid choice for serious shooters seeking improved stability and comfort.