Switchweight Module sets for Mathews bows including Phase 4, V3X, Image, V3, VXR, Atlas and Vertix models. Designed to change both peak weight and draw length. (These do NOT fit the newer Lift/Lift X bows) Module letter/draw length required depends on the model of bow you are fitting them to. Please refer to the chart below or call us to discuss if you're unsure what you need. Modules are available in peak weights of 60, 65, 70 and 75lb 85% let-off modules available, 80% by special order only. Mod Atlas V3X 29 V3X 33 V3 31 V3 27 VXR 31.5 VXR 28 Vertix A 34" 30" 31.5" 30.5" 29.5" 31" 30" 30.5" B 33.5" 29.5" 31" 30" 29" 30.5" 29.5" 30" C 33" 29" 30.5" 29.5" 28.5" 30" 29" 29.5" D 32.5" 28.5" 30" 29" 28" 29.5" 28.5" 29" E 32" 28" 29.5" 28.5" 27.5" 29" 28" 28.5" F 31.5" 27.5" 29" 28" 27" 28.5" 27.5" 28" G 31" 27" 28.5" 27.5" 26.5" 28" 27" 27.5" H 30.5" 26.5" 28" 27" 26" 27.5" 26.5" 27" I 30" 26" 27.5" 26.5" 25.5" 27" 26" 26.5" J 29.5" 25.5" 27" 26" 25" 26.5" 25.5" 26"
