

8 mm gearbox shell
ECS model (quick release spring).
For M4/M16 series.
Includes spring guide, cushioned bushings and hardware.
Compatibility VFC and standard clones
8 mm gearbox shell
ECS model (quick release spring).
For M4/M16 series.
Includes spring guide, cushioned bushings and hardware.
Compatibility VFC and standard clones
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