FAB Defense Adjustable Cheek Riser with Picatinny Rail for GL-Shock Black. These AR15 Stocks created by FAB Defense are fully-adjustable and are easily installed onto GL-SHOCK buttstocks. This FAB Defense GL-Shock Adjustable Cheek Rest Kit w/ Dual Picatinny Rails is durable and lightweight for use in any situation or environment. Improve your shooting comfort without the help of a gunsmith by installing this FAB Defense GL-Shock Adjustable Cheek Riser w/ Picatinny Rail Adaptor. Specifications for FAB Defense GL-Shock Adjustable Cheek Riser w/ Picatinny Rail Adaptor: Manufacturer: FAB Defense Additional Features: for GL-Shock Condition: New Features of FAB Defense GL-Shock Adjustable Cheek Riser w/ Picatinny Rail Adaptor: Fully Adjustable Cheek Rest Dual Picatinny Rails Ideal Mounting Solution for the SH-5 Easy to Attach and Dismantle Lightweight and Strong Easy to Install No Gunsmith Required Package Contents: FAB Defense GL-Shock Adjustable Cheek Riser w/ Picatinny Rail Adaptor FAB Defense FX-GSPCP: Picatinny Rail Adaptor for GL-Shock