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The CMI Archery 4mm Impact Collars were designed to enhance arrow durability, consistency, and overall performance. Machined from 416 stainless steel and heat treated for maximum strength, these 25-grain collars provide excellent impact resistance and long-lasting reliability in demanding field conditions. Built with tight tolerances and exceptional straightness, they ensure a concentric fit that improves arrow balance and promotes consistent flight characteristics. Available in multiple internal diameters for a precise shaft fit, these collars pair seamlessly with CMI 25-grain inserts to create a balanced 50-grain system, delivering dependable accuracy and performance with every shot.
| Weight | 25 grains |
| Material | 416 stainless steel |
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