Description The CMI Archery 4MM Titanium Inserts were engineered for archers who need precision, durability, and a custom arrow setup. Made from high-strength titanium, these inserts provide a lightweight yet rugged foundation that enhances arrow integrity and consistency. Designed to accept 4MM screw-in backweights, they allow for easy adjustment of arrow weight and balance to match specific shooting conditions or personal preferences. Whether you&';re dialing in your setup for competition or hunting, these inserts help optimize trajectory and kinetic energy for improved performance. Specs Weight 50 grains Material Titanium Compatibility 4mm screw-in backweights for customizable weight options