Retro Arms CNC Hop Up Chamber AK receiver sets checking the GPS

checking the GPS

rearview mirrors

The tension of the spring can be adjusted to further fine tune your results

The Hopup Chamber M4A unit is wisely equipped with an interchangeable Inlet Adapter

This motor will draw less amps to do the same work

Retro Arms CNC Hop Up Chamber AK receiver sets checking the GPSThis is the newest Hop Chanber for AK from Retro Arms They changed their drill depth allowing the use of 20. 1 mm nozzles This Precision Hop Chamber will increase accuracy and consistency for your AK AEG platform Included 1pcs Hop Up chamber for AK (anodized, made from aircraft dural EN AW 7075) 1pcs Setting lever (anodized, made from aircraft dural EN AW 7075) 1pcs Pushing lever with cut for common spacers(anodized, made from aircraft dural EN AW