Bushing

A bushing is a small, usually metal, sleeve located at the rear end of the arrow shaft. It is either glued or inserted into the shaft and serves as a mount for the nock (push-in nock). The bushing stabilizes the shaft end, protects the arrow from damage (e.g., from Robin Hoods), and allows for easy replacement of the nock.

In short, a bushing is a reinforcement and nock mount at the arrow’s rear, protecting the shaft and making the arrow more durable. 🔥🏹