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