Sprinco M4 / AR-15 Extra Power 5-Coil Extractor Spring Upgrade Kit
- 5 coil design
- Optimal for 16” or shorter 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
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
Ratings & Reviews
by Casey D -
All of sprinco springs are excellent. The 5 coil spring works great with the black insert and NO oring. It’s too much extractor pressure in my guns. They will help extract steel case and with running suppressed. I use these in every gun I assemble.
Good to go
by LetsGoBrandon -
What can I say it's sprinco. Get yours while you can.