Fab-Defense FAB Tactic-Skin TacticSkin 17 for Glock 17 22 31 37. Polymer Slide Cover for Pistol + Best Security Gear Magnet (Black) Provides improved front and rear serrations for easier, more secure cocking, even while wearing glov Protects shooter from slide and barrel heat Made of high-grade, non-slip, polymer composite Fits Glock 17, 22, 31, 37. Cannot Be Used With "C" Models! Quickly and easily installed and removed without a gunsmith