Sprinco M4 / AR-15 Enhanced 4-Coil Extractor Spring Upgrade Kit – 3 Pack
Just like their buffer springs, the Sprinco AR-15 Extractor Springs are made from high-quality Chrome Silicon wire stock that has been heat-treated, stress-relieved, and cryogenically processed to produce long-lasting durability. This 4-coil extractor spring upgrade kit is designed for AR-15 bolt carrier groups and provides the same spring pressure as OEM springs for use in 18” barrel rifles. This upgrade kit also includes the Mil-Spec extractor insert and Viton O-rings. Whether you are replacing worn springs or setting some aside for future use, Sprinco springs are the only ones you will ever need.
Features
- Pack of 3
- 4 coil design
- Optimal for 18” rifles
- For AR-15 BCG
- Made from Chrome Silicon wire stock
- Heat-treated, stress-relieved, and cryogenically processed
- Easy to install
- Includes Mil-Spec extractor insert and Viton O-Rings




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