Aluminum Arrows: Spine, Weight & Selection Guide

Aluminum arrows are archery shafts made from aluminum alloy, valued for their lightweight feel, consistent spine, and lower cost compared to carbon alternatives. They are used by both novice and experienced archers, particularly in target archery where straight, repeatable flight matters most.

Advantages of Aluminum Arrows

• Lightweight: Aluminum shafts reduce fatigue during long shooting sessions and contribute to a smooth release.
• Consistent performance: Uniform construction helps produce straight, predictable flight — a key advantage for target archery arrows.
• Affordability: Aluminum arrows are generally less expensive than carbon shafts, making them a practical starting point for beginners or archers testing different setups.
• Good strength-to-weight ratio: Despite being light, aluminum has sufficient stiffness to handle repeated shots from a bow.

Disadvantages of Aluminum Arrows

• Tendency to bend: On hard impact — such as hitting a stiff target or a solid surface — aluminum shafts can deform, affecting accuracy and making retrieval harder.
• Not ideal for broadheads: Hunting applications that require deep penetration are better served by carbon or carbon-aluminum composite shafts, as aluminum can bend on impact, reducing broadhead effectiveness.

Understanding the Aluminum Arrow Numbering System

Aluminum shafts use a four-digit code that encodes two physical dimensions. The first two digits represent the shaft's outside diameter in 64ths of an inch; the last two represent wall thickness in thousandths of an inch. For example, a 2314 shaft has a 23/64" outer diameter and a 0.014" wall. A thicker wall produces a stiffer shaft — so a 2315 is stiffer than a 2312 of the same diameter.

Key Selection Factors

Spine

Arrow spine describes shaft stiffness. An incorrectly spined arrow will miss consistently — an under-spined shaft veers off line, while an overly stiff shaft can do the same. Match spine to your bow's draw weight and draw length using a manufacturer spine chart. Note that a lower spine number means a stiffer shaft, which surprises many beginners. See how arrow weight in grains interacts with spine selection when building a matched arrow setup.

Weight

Arrow weight influences speed and energy transfer. For a deeper look at how grain weight measurement works in practice, our glossary entry covers the terminology used across most arrow selection charts.

Length and Fletching

Arrow length should match your draw length for consistent results. Choosing the right fletching type and style also affects in-flight stabilization — particularly important when shooting aluminum arrows for archery at longer distances.

For hunting, carbon or carbon-aluminum composites are generally recommended. For target archery arrows and beginner use, aluminum remains a cost-effective, reliable option.