Retro Arms is a true premium-grade manufacturer from the Czech Republic. The parts machined from aircraft-grade aluminum are top-notch both aesthetically and structurally. In addition to the standard AR model hop-up chamber, Retro Arms decided to create one specifically for ICS M4 series replicas. After extensive research, Retro Arms developed several innovative features: A split collar nut is used to stabilize and secure the inner barrel, centering it very tightly within the hop-up chamber body. During tightening, there is no need to apply excessive force. This part is also machined from aluminum. Although the chamber is designed especially for Retro Arms CNC gearboxes, it can be installed in almost any V2 gearbox.
Package Includes:
1 pc Hop-Up chamber for ICS AR series (anodized, material aircraft aluminum EN AW 7075)
1 pc adjustment wheel (anodized, material aircraft aluminum EN AW 7075)
1 pc C-Clip AR (ABS plastic)
1 pc pressure arm (anodized, material aircraft aluminum EN AW 7075)
1 pc sliding pin (ABS plastic)
1 pc O-ring (vulcanized rubber)
1 pc split collar nut (anodized, material aircraft aluminum EN AW 7075)
1 pc pressure spring (unfortunately, this one is not CNC machined)
This model is compatible only with ICS AR15/M4 series.
You can find the standard V2-compatible Retro Arms chamber here
The chamber is delivered unassembled!
