Sprinco M4 Blue Standard Enhanced Buffer Spring | 25007

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.

Features:

• 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.

This is the perfect spring for your KDG 6-Position Receiver Extension