The Bore Buddy .22lr Power Extractor springs for better extractor bite and increased live round extraction reliability on a dirty chamber or with waxy ammo. Each kit contains 8 springs, 4 x Level 1 and 4x Level 2.
Level 1: 200% extractor force
Level 2: 500% extractor force
Designed to fit rifles and conversion kits with a CMMG/Atchisson/Ciener style bolt.