IMI Defense TTS Polymer Thumb Support O.D. Green IMI-ZTTS1O.D. GREEN. The TTS ergonomic support can be set in multiple locations for a wide variety of tactical needs and ideal operational superiority taking in mind ideal compact configuration. Specifications for IMI Defense TTS Polymer Thumb Support: Manufacturer: IMI Defense Fabric/Material: Polymer Features of IMI Defense TTS Polymer Thumb Support Allows optimal personalconfiguration Fits 1913 PicatinnyRails Improves weapon control Allows safe and efficient use in extreme operational scenarios Complimentary to the FSG1/2 Front Support grip as a Thumb Support Package Contents: IMI Defense TTS Polymer Thumb Support IMI Defense IMI-ZTTS1O.D. GREEN: TTS Polymer Thumb Support O.D. Green