The Altra 204 Insert and Outsert 250 Spine is a precision upgrade for Altra Arrows 204 shafts, built for archers who demand repeatable flight, durability, and easy tuning.

• Material: Constructed from 7075-T6 aluminum for rugged durability and solid grip on each arrow.
• Compatibility: Specifically designed to fit Altra Arrows 204 shafts with 250 spine inserts; available in 300, 350, and 400 spine options for precise tuning.
• Insert depth: Secure insert seating depth of 0.875 inches ensures consistent alignment across shots.
• Outsert size: Outsert encases the arrow end at 0.43 inches, protecting the tip area and improving stability.
• Vibration reduction: Pre-installed rubber O-rings reduce vibration and improve concentricity for cleaner flight.
• Pack size: Sold in a 12-pack for convenient stocking and setup across multiple arrows.
• Total weight: 53 grains total weight to support precise tuning without drastically changing arrow dynamics.
• Weight adjustment: Accepts micro FMS insert weights for fine-tuning shot consistency and point of impact.
• Performance benefit: Enhances downrange accuracy and precision by stabilizing the interface between the shaft, insert, and tip.

Designed for serious target and field archery, this insert and outsert combination helps you achieve reliable, repeatable arrow performance. Use it to fine-tune arrow weight and spine for your bow setup, experiment with micro weights to dial in accuracy, and enjoy steadier flight across ranges. Ideal for archers who want a durable, high-precision solution that stands up to regular use and field conditions.