The LBE Unlimited AR15 Hammer Spring 20-Pack provides armorers, gunsmiths, and high-volume builders with replacement springs for AR-15 and M16 lower parts kits.
- Part Type: Hammer Spring
- Compatible Firearms: AR-15, M16, and mil-spec AR-pattern rifles
- Material: Spring steel
- Finish: Standard
- Installation: Drop-in for experienced builders; reference build guide if unfamiliar with lower assembly
- Includes: 20 hammer springs
