SGM Tactical Tactical Stock Cheek Piece - Wrench Black. Using an AR based rifle the cheek piece can become damaged during target practice a critical training exercise or an emergency situation. This cheek piece provides a simple cheek weld that can be easily removed with a standard torque wrench. It enhances the look and feel of your telescoping stock. The Tactical Stock Cheek Piece - Wrench is multi-anvilected providing a ergonomic shape that fits well with most tactical rifles. Specifications for SGM Tactical Tactical Stock Cheek Piece - Wrench: Manufacturer: SGM Tactical Color: Black Package Contents: SGM Tactical Tactical Stock Cheek Piece - Wrench SGM Tactical SGMTSW: Tactical Stock Cheek Piece - Wrench Black