Taran Tactical Innovations Checkmate 170 Completed 9mm Luger Pistol Magazine w/ TTI 3mm Black Basepad Silver/Gray 27. Tubes are polished inside and out to eliminate drag. The follower is designed featuring Check-Mates anti-friction self-lubricating polymer for exceptional feed and function with every round. Check-Mates high-performance springs offer high quality outstanding reliability and exceptional spring endurance. Specifications for Taran Tactical Innovations Checkmate 170 Completed 9mm Luger Pistol Magazine w/ TTI 3mm Black Basepad: Manufacturer: Taran Tactical Innovations Caliber: 9mm Luger Magazine Capacity: 0 Round Fabric/Material: Stainless Steel Package Contents: Taran Tactical Innovations Checkmate 170 Completed 9mm Luger Pistol Magazine w/ TTI 3mm Black Basepad Basepad OEM Magazine Taran Tactical Innovations 2011-CM-SLVR-170-5: Checkmate 170 Completed 9mm Luger Pistol Magazine w/ TTI 3mm Black Basepad Silver/Gray 27