JG Golden Eagle VII Elite Model Metal Gearbox for M4 M16 Airsoft AEG Guns Front Wired
Metal gearbox shell.
Steel 18:1 gearset.
Metal Spring Guide.
Wired to the front.
Designed for 380 to 420 FPS with 0.20g BB's (actual output may vary depending on hop up unit, bucking, inner barrel, and etc).