Action Spring




Our Action / buffer springs are made from US sourced and certified chrome silicon wire stock–the same wire used in NASCAR and Formula One engines–and are designed to withstand extreme heat and abuse.

Spring Specifications

  • Certified ASTM Grade A877 valve-quality Chrome Silicon wire stock
  • Designed for longevity under extreme heat and abuse
  • Consistent spring pressure through rifle cycling
  • Over 800,000 cycle tested
  • All material, components, and packaging made in the USA


Additional information


AR10 Rifle Length, AR15 Carbine Length, AR15 Rifle Length

1 review for Action Spring

  1. Moises Plata

    Very pleased with improvement in function and reliability. A must do upgrade for any AR15. Blackout Defense makes top notch products, quality is unquestionable and these are no exception.

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