Neptune Defense Variable Pitch AR-15 Buffer Spring - Carbine

The Neptune Defense AR-15 Variable Pitch Recoil Spring is a carbine-buffer-tube compatible recoil spring designed to reduce felt recoil and progressively slow the bolt carrier for smoother cycling across a range of applications, including 9mm blowback and .300 AAC Blackout systems.

Features:

• Variable-pitch coil, compatible with carbine buffer tubes
• Progressively slows bolt carrier to reduce felt recoil
• Also compatible with 9mm blowback and .300 Blackout systems
• Easy drop-in installation
• Piano wire construction
• Made in the United States

The variable-pitch coil profile breaks up initial impact forces and acts as a mechanical cushion, delivering smoother cycling and improved shooter controllability across a wider range of calibers and operating systems than a standard constant-pitch spring.

Neptune Defense manufactures AR-platform recoil components focused on smoother cycling and reduced felt recoil across a range of calibers and operating systems.