Sprinco M4 / AR-15 Enhanced 4-Coil Extractor Spring Upgrade Kit - 3 Pack

Manufactured by Sprinco USA
SKU: 26403
MPN: 26403
Manufactured by Sprinco USA
2 Reviews

In Stock

Due to the overwhelming response to our Black Friday and Cyber Monday sales, we are working hard to catch up! New orders of non-FFL items will ship within 2 business days (M-F), and FFL orders will ship within 8 business days if transfer details are provided.

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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.

  • 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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BrandSprinco USA
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

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Great product!

by -

As always, Sprinco doesn't disappoint. Very well made and great fit and finish. Primary Arms is my go too spot. Excellent service and shipping times!

Happy I found these springs!

by -

When I started building my own AR 15s this is a upgrade that I put in the bolt as a normal course of the build, I also changed the trigger sear and hammer to nickle boron and installed a JP spring set also as a normal course of the build.
It's been quite a while since I was able too find them, and I seem to remember that they were a BMC gunfighter upgrade back then, in any event I know where too get them now .
Primary Arms comes through again!