Altra Centrum 166 Limited Shafts are premium micro-diameter arrow shafts built for serious bowhunters and target archers who crave precise tuning and repeatable results. This 12-pack delivers 32" shafts with tight tolerances and weight matching, ready to customize with your preferred inserts, nocks, and fletching.

• Total Length: 32" overall length provides ample room to tune your setup for speed-focused hunting arrows or high-stability target rigs.
• Weight Matching: Each shaft is weight sorted to +/- 1 grain to ensure consistent flight and predictable groupings across a full quiver.
• Diameter & Spine: Micro-diameter design (.003") with spine range 250–400 to support precise tuning and stable downrange performance.
• Pack Size: 12 shafts per package, giving you enough material to build multiple arrows with identical specs.
• Customization Ready: Components not included—you can tailor inserts, nocks, and fletching to your exact setup and preferences.
• Durability & Consistency: Engineered for durability and downrange consistency, delivering tight tolerances and smooth flight from arrow to arrow.
• Ideal For: Designed for archers who demand precision, tunability, and performance in a micro-diameter platform.

These shafts empower you to build with confidence, tune with ease, and shoot with consistent results. The weight-matched, dimensionally precise design helps minimize flight variance, while the 32" length gives you flexibility in tuning your hunting or target rig. With the freedom to customize inserts, nocks, and fletching, you can craft arrows tailored to your exact draw weight, arrow rest, and wind conditions—delivering repeatable accuracy season after season.