Taran Tactical Innovations Checkmate 140 Completed 9mm Luger Pistol Magazine w/ TTI 4mm Flat Black Basepad Silver/Black. Every tube is through-hardened for exceptional strength and durability. 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. Completed 126mm Magazine Is a 10 ROUND CAPACITY and comes with TTI 4mm basepad. With your choice of Black Coyote Bronze or Gray Completed 140mm Magazine comes with TTI 4mm basepad. With your choice of Black Coyote Bronze or Gray Completed 170mm Magazine comes with TTI 3mm basepad. With your choice of Black Coyote Bronze or Gray Specifications for Taran Tactical Innovations Checkmate 140 Completed 9mm Luger Pistol Magazine w/ TTI 4mm Flat Black Basepad: Manufacturer: Taran Tactical Innovations Caliber: 9mm Luger Magazine Capacity: 21 Round Package Contents: Taran Tactical Innovations Checkmate 140 Completed Magazine w/ TTI 4mm Basepad Spring Basepad OEM Magazine Taran Tactical Innovations 2011-CM-SLVR-140-1: Checkmate 140 Completed 9mm Luger Pistol Magazine w/ TTI 4mm Flat Black Basepad Silver/Black