The go-to folding knife for uniformed professionals, SOG-TAC XR features a 3.4 inch cryogenically heat-treated D2 tool steel blade and ultra-grip G10 handle. SOG's XR Lock enables smooth ambidextrous single-handed opening in three different ways, with extremely secure blade-lock once open. The next generation of designed and engineered performance in a tactical pocket knife. | SOG Tac XR Blackout Pocket Knife