The RIA 5.0 - Recoil Spring is a replacement part for your AR-15 upper receiver. It is made from high-quality steel and is designed to provide smooth and reliable operation of your rifle. The spring is also heat treated to ensure durability and long life.
**Proper gunsmith fitting required for accurate fit & safe function.**
Features:
- Made from high-quality steel
- Heat treated for durability
- Compatible with most AR-15 style rifles and carbines