SAMOON - Reinforce Recoil Spring (Piano Steel Wire) For GHK M4 GBB Series

SKU：MS046

Stock Status：3

100

Description

Compatible With GHK M4 /MK18 /RIS /MK16(URG-I) GBB Series

Replace GHK M4 GBB original parts #M4-34 (Buffer Spring).

Make great recoil power with heavy buffer