Ares E.F.C.S. Gearbox with One-Piece Cylinder for M4, Front Wiring

The improved Ares E.F.C.S. gearbox is designed for M4 replicas with front wiring. It has a reinforced metal construction, a sealed one-piece cylinder and a reinforced full-teeth piston, for reliable operation.

Features

• Improved E.F.C.S. gearbox
• Reinforced metal construction
• Sealed one-piece cylinder
• Reinforced full-teeth piston
• High-quality spring
• Delayer
• Front wiring

Specifications

• Weight: 492 g