Canik Magazine 9MM 21 Rounds 18Rd Mag with +3 Extension Fits TTI Combat Full Size Black With +3 Bronze Extension. Specifications for Canik Magazine 9MM 21 Rounds 18Rd Mag with +3 Extension Fits TTI Combat Full Size Black With +3 Bronze Extension: Manufacturer: Canik Caliber: 9mm Luger Magazine Capacity: 21 Round Color: Black Finish: Black Additional Features: Canik TTI Magazine Number of Rounds: 21 Handle Color: Black Features of Canik Magazine 9MM 21 Rounds 18Rd Mag with +3 Extension Fits TTI Combat Full Size Black With +3 Bronze Extension: Durable Polymer Follower Package Contents: Canik Magazine 9MM 21 Rounds 18Rd Mag with +3 Extension Fits TTI Combat Full Size Black With +3 Bronze Extension