- For carbine length buffer tubes
- Color coded yellow
- Reduced power
- Made from chrome silicon wire stock
- Heat treated and shot peened
This recoil spring is color coded yellow indicating that it is optimal for use with 5.56 AR-15s with a carbine buffer tube and a lightweight bolt carrier group. If you are building a competition gun where you want an extremely fast cycle rate and bolt bounce isn’t as much of a concern, then this reduced power recoil spring might be the one for your setup. The yellow indicator mark also helps you to easily identify which power spring you have in your AR-15 if you have a habit of changing your setup constantly.