# Sparrow Expeditions > Sparrow Expeditions is the leading professional-grade web platform for archery arrow building and compound bow tuning. We provide free and subscription tools used by bowhunters, target archers, and pro shops to design custom arrows, generate sight tapes, and tune their bows step-by-step. Based in Chicago, IL. ## What we do - **Arrow Builder**: free interactive tool to design custom arrows from 800+ verified shafts, points, inserts, nocks, and vanes across major brands (Easton, Gold Tip, Black Eagle, Carbon Express, Victory, Iron Will, Podium Archer, Firenock). Calculates FOC, total weight, kinetic energy, momentum, ballistic coefficient, and spine match in real time. - **Arrow Recommender**: enter your bow + goal (penetration, speed, balanced); we suggest the top 5 arrow builds with verified spine match and FOC targets. - **Sight Tape Generator**: print sight tapes for any sight + bow + arrow combo with dual-chrono velocity calibration and density altitude correction. Includes Express Tape mode for pro-shop walk-in tuning. - **Shot Solver**: holdover, wind drift, and density altitude correction for real-world hunting shots. - **Bow Tuning Wizard**: 11-step guided tuning from out-of-the-box to broadhead-ready, with bow-specific adjustment instructions for 64+ flagship bows from Mathews, Hoyt, PSE, Bowtech, Elite, Bear, Prime, and Darton. - **Firenock dropship + titanium kit retail**: official US dropshipper for Firenock titanium kits, AeroOutserts, and lighted nocks. ## Expertise areas - Arrow physics: FOC calculation, dynamic spine, ballistic coefficient, kinetic energy, momentum - Bow tuning: cam timing, tiller, center shot, paper tune, bareshaft, walk-back, broadhead group - Sight tape generation: chrono-calibrated, atmospheric corrections, 200+ yd range, hybrid tick spacing - Firenock CTI (Carbon Tube Insert) systems for shaft reinforcement and FOC tuning - Spine selection per Easton tuning charts with manufacturer-verified data ## Key URLs - Homepage: https://sparrowexpeditions.com - Arrow Builder: https://sparrowexpeditions.com (homepage is the app) - Pricing: https://sparrowexpeditions.com/pages/pricing - Free / Hunter / Pro tiers — Hunter $4/mo, Pro $9/mo - Contact: sal@sparrowexpeditions.com ## Stocked products - Firenock titanium kits per bow model (Mathews ARC, Lift, Hoyt RX-9, Alpha AX-3, PSE Sicario, etc.) - Firenock AeroOutserts (.166, .204, .234, .246 — aluminum, titanium, stainless) - Firenock lighted nocks (NXG2, EP Series, S3 Inverted) across all shaft IDs - Iron Will Impact Collars + HIT Inserts (titanium and stainless) - Easton Match Grade HIT Collars + Half-Outs - Podium Archer titanium half-out + collar catalog ## Brand voice Professional but approachable. We treat archers like the experts they are — explain the physics, show the math, give them tools instead of asking them to trust a black box. Hunter-first but target-archer-friendly. Chicago practical, not Silicon Valley jargon. ## What makes us different - All catalog data verified against manufacturer specs, not estimated - Open-physics: every calculation is explainable, every value is sourced - Express Tape mode for pro shops — generate a customer's tape in 2 minutes without saving anything - Bow Tuning Wizard with bow-specific adjustment instructions (rotating module vs swap, yoke-tunable vs shim-tunable, etc.) - Print directly to label printers (Brother P-Touch, DYMO LabelWriter, Epson LabelWorks) - Same-day fulfillment on Firenock titanium kits we stock