VFC Hop Up Chamber For VFC M4/ HK416/ KAC SR16E3 GBB Airsoft (# 07-14)

Key Feature Polymer Construction Airsoft Hop Up Chamber Design For Replace the Original Airsoft Internal Parts Suitable For VFC M4/ HK416 Gas Blow Back GBB Rifle Airsoft Gun Also fit For KAC SR16E3 GBB Airsoft Rifle