Sprinco M4 Blue Standard Enhanced Buffer Spring | 25007


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(53 customer reviews)

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Sprinco AR-15 rifle buffer springs are made from high quality Chrome Silicon wire stock. 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. The Sprinco Blue rifle buffer spring is a great option to improve the long-term reliability of your AR-15.


  • For carbine length buffer tubes and mid-length gas systems
  • Color coded blue
  • Enhanced power
  • Made from chrome silicon wire stock
  • Heat treated and shot peened

This recoil spring is color coded blue indicating that it is optimal for use with 5.56 AR-15s with a mid-length gas system and carbine buffer tube. Sprinco has extensively tested this setup and have concluded that it works great with 5.56 AR-15’s with a barrel length from 12.5” to 16” and either a standard or H2 buffer weight. It also helps you to easily identify which power spring you have in your AR-15 if you have a habit of changing your setup constantly.

Note: In an effort to help our customers save on shipping costs, these springs may be shipped without the plastic tube.

Additional information

Weight 4 oz
Dimensions 6 × 1 × 1 in

53 reviews for Sprinco M4 Blue Standard Enhanced Buffer Spring | 25007

  1. G. DeVries (verified owner)

    Stock carbine springs and buffers suck. This is an improvement and made things a little more enjoyable. Sprinco quality is great as always.

  2. topgunpilot (verified owner)

    Never wears out and helps slow the bolt down. Too heavy for a Hodge 12.5” barrel with .0645 gas port though.

  3. abartolac23 (verified owner)

    Sprinco quality. Threw it in my KAC 14.5 with H2 buffer.

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