SAMOON  GHK M4 Enhanced Buffer + Piano-Wire Powerful Recoil Spring

• Description:
• GHK M4 Enhanced Blowback Buffer + SAMOON Piano-Wire Powerful Recoil Spring
• Compatible for GHK, Viper, Inokatsu, and other brand M4 GBBR
• The original weighs of buffer rod is 90g, this enhanced version (stainless steel made) is about 150g, which increase blowback recoil a lot.
• Feature of SAMOON piano-wire recoil powerful spring: Tempered high-carbon steel made, compatible with GHK M4 GBBR, give users a powerful blowback recoil experience.