Micro Insert Weights - 12 pack sight hand-laid carbon fiber and the

hand-laid carbon fiber and the tightest of tolerances

150 GRAINS

NO SPINE Technology delivers enhanced tunability and consistency

Available with a 1-pin or 3-pin housing with

Micro Insert Weights - 12 pack sight hand-laid carbon fiber and theThe Pinnacle of Precision & Performance Altra Forward Mass System (FMS) micro insert weight system offers fine adjustment of total arrow weight to increase F. O. C. and improve down range accuracy. The micro insert weights are designed for use with all Altra 166 arrows and are stackable for infinite weight adjustment. Features: Comes in 12 pk QTY Available 10 & 20 Grains Blue Loctite recommended for assembly