Sprinco M4 / AR-15 Hot White Intermediate Power Carbine Buffer Spring


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Sprinco Hot White AR-15 / M4 Intermediate Power Carbine Buffer Spring

Sprinco AR-15 buffer springs are made from high quality Chrome Silicon wire stock which is used in a variety of applications from Formula One to motor valve springs which can see up to 15,000,000 compression cycles in a single race. This makes it the perfect choice for a carbine which will see far less cycles than that over it’s lifetime. In order for this carbine buffer spring to retain its strength, Sprinco heat treats, shot peens, and treats each spring with a proprietary formula that retains spring efficiency for as long as you have your rifle. Sprinco buffer springs are a great option to improve the long-term reliability of your AR-15.

This intermediate power carbine buffer spring is slightly more powerful than a standard carbine spring. Sprinco’s testing has found that these are great for rifles with midlength gas systems.


  • ASTM Grade A877 Certified Valve Quality Chrome silicon Wirestock
  • Heat Treated, Stress Relieved and Dual Stage Shot-Peened post winding (Our springs really ARE shot-peened)
  • Impregnation / Plating with Re-Micronized Molybdenum Disulfide formulation
  • Hard plastic tube packaging for protected transport and easy storage (Tubes make great storage compartments for all sorts of gear)
  • Optional Cryogenic Processing Available (Select Item 26001)


  • Increased “lock time” for faster sight recovery and platform stability
  • Consistent spring pressure throughout the duty cycle of the spring, resulting in fewer malfunctions related to spring operation (Especially Type III malfunctions)
  • Improved & consistent cyclic operation. Spring will not change performance for many hundreds of thousands of rounds
  • Greater resistance to heat induced performance degradation
  • Reduced cyclic rate with Enhanced or Extra Power springs and reduce / eliminate bolt bounce with optimal spring / buffer weight selection
  • Reduced operating cost as replacement springs are not needed during the life of your upper receiver assembly. Less downtime and fewer trips to the armorer for spring replacement, in fact, this will most likely be the only buffer spring you will ever need for the duty cycle of your carbine or rifle!
  • Correct spring selection works reliably, consistently, and virtually indefinitely in all properly built and maintained AR platforms

Additional information

Weight 1 oz
Dimensions 11 × 1 × 1 in

2 reviews for Sprinco M4 / AR-15 Hot White Intermediate Power Carbine Buffer Spring

  1. Matt Minor (verified owner)


  2. abartolac23 (verified owner)

    Sprinco quality. Threw it in my KAC 11.5 with H2 buffer.

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