Retro Arms CNC Aluminum Hop-up Unit for V3 AK AEG

 Features CNC machined aluminum  Threaded collet nut to eliminate barrel torsion and vibration Hop-Up chamber for AK airsoft replicas. This new Hop-Up chamber is manufactured from aircraft dural EN AW 7075, what have steel-like strengh and weight of aluminum so it is best material for use. Chamber is milled on CNC milling machine and it also has protective anodizing of 5µm silver color (0,005mm). We build this Hop-Up chamber on results from testings, so this chamber is precise and custom-made constructed for best feeding and performance. We changed drill depth, so with 20,1 mm nozzle and Hop-Up 60 Shore bucking, we were able to get stable performance above 16m/s above spring power. Even feeding with heavy weight 0,43 BBs on SEMI and AUTO was without any problem. For best setting of inner barrel, we created new innovation on our Hop-Up chamber – the collet nut connection. It is placed in front of Hop-Up chamber. You will just install inner barrel with Hop-Up bucking into the chamber,