Firenock AeroOutsert (12-pack) — .166 / 4mm shafts
$26.00
Sale price
$26.00
Regular price
Precision-forged 7075-T6 aluminum outsert collars for .166 (4mm) micro-diameter hunting shafts. Each size is matched to a specific shaft OD — pick the size that matches your shaft's measured outer diameter for true broadhead alignment.
Why these matter
- OD-matched fitment means no broadhead wobble, no spin-out, no group flyers
- Outsert design (not insert) keeps shaft wall thickness intact at the impact point
- 7075-T6 aluminum — 60% lighter than steel collars at the same strength
How to choose
Measure the OD of your shaft with calipers, then select the closest size below. Firenock makes these in 0.5-thou OD increments because micro-diameter tolerances vary by manufacturer.
12-pack. Ships from Firenock LLC. Typical lead time 3–5 business days.