The Altra 204 Insert and Outsert 300 Spine is a precision assembly designed for archers using Altra Arrows 204 shafts. It blends durable aluminum construction with tunable spine options to enhance consistency and downrange accuracy.

• Material: 7075-T6 aluminum for long-lasting durability and repeatable performance in varying conditions.
• Compatibility: Specifically fits Altra Arrows 204 shafts; available in spine options 250, 300, 350, and 400 to match different draw weights and flight characteristics.
• Insert Depth: Secure insert depth of 0.875 inches ensures repeatable alignment and predictably straight flight.
• Outsert Design: Encapsulates the arrow end with a 0.43-inch outsert to protect the tip and contribute to consistent aerodynamics.
• Vibration Dampening: Pre-installed rubber O-rings reduce vibration and improve concentricity for tighter groupings.
• Weight and Customization: Weighs 53 grains and accepts micro FMS insert weights for fine-tuning spine and trajectory.
• Pack Size: Sold in a 12-pack, offering ready-to-use components for multiple arrows or backup setups.
• Unique Value: Tailored to precision archery needs with distinct spine options and dampening features not found in generic inserts/outserts.

This insert-and-outsert pair delivers repeatable performance for serious archers: select the spine that matches your draw, install with a precise 0.875" insert depth, and benefit from vibration dampening that helps maintain accuracy across shots. The ability to add micro FMS weights lets you dial in tuning for your specific bow setup, wind conditions, and target distance, making it a practical upgrade for target shooters and hunters using Altra Arrows 204 shafts.