Alta Labs Altra Insert and Outsert components for .166 400 spine arrows are designed to strengthen the arrow’s front end while improving consistency shot to shot. The insert seats into the arrow shaft to a depth of 0.875 inches, and the outsert threads directly onto the insert to encapsulate the leading end by 0.43 inches for added durability and stability.
Key Features
Insert seats into the shaft to 0.875 inches for a secure starting point
Outsert encapsulates the leading end by 0.43 inches to enhance front-end durability
Pre-installed rubber O-rings in the A.R.C.O.S. system help lock the outsert in place
Reduces vibration and promotes concentric alignment between insert and outsert
Built for tighter, more consistent arrow setup for improved accuracy down range
Upgrade your front-end arrow build with an Alta Labs Altra Insert and Outsert designed for .166 400 spine shafts.
