Knowledge Base
Arrow Building
Articles & Guides
Everything we know about building accurate hunting arrows — FOC, spine selection, component weights, and tuning — from the shop floor to your quiver.
Arrow Tuning · 7 min read
Arrow FOC Explained: What It Is, Why It Matters, and How to Tune It
What is arrow FOC? Learn how Front of Center affects arrow flight, penetration, and wind drift — plus the FOC formula, recommended percentages for hunting, and how to tune your own setup.
Read the guide →Arrow Basics · 8 min read
How to Choose the Right Arrow Spine for Your Bow Setup
Arrow spine explained: what spine numbers like 500, 400, 350, and 300 mean, how draw weight, arrow length, and point weight change what you need, and how to spot an arrow that is too weak or too stiff.
Read the guide →Prefer to learn by doing? Try the free FOC Calculator or design a full setup in the 3D Arrow Builder.