Alta Labs Altra 166 Spine Insert and Outsert A.R.C.O.S. Heavy 400 Spine

Description

Product Overview

The Alta Labs Altra 166 Spine Insert and Outsert A.R.C.O.S. Heavy 400 Spine system is engineered for dependable, consistent arrow builds. Machined from 7075-T6 aluminum, it uses a keyed insert that seats into a 166 shaft and an outsert that threads on to encapsulate the front end of the arrow. Pre-installed rubber O-rings help lock the outsert in place to reduce vibration and improve shot-to-shot concentricity.

Key Features

• 7075-T6 aluminum construction for durability in repeated use
• Insert seats into the shaft at a depth of 0.875 inches for secure alignment
• Outsert encapsulates the arrow end by 0.43 inches to support a consistent front-end fit
• Pre-installed rubber O-rings help reduce vibration and improve concentricity
• Built for Alta Labs Altra 166 shafts in the Heavy 400 spine configuration
• Accepts micro FMS insert weights for tuning

Dial in a more consistent arrow setup with the Alta Labs A.R.C.O.S. insert and outsert system for 166 shafts in Heavy 400 spine.