CNC machined aluminum M4i - PRO Hop-Up chamber (with bullet catch and release lever) is designed for standard M4/M16 rifles from ICS. Due to the high quality and precision manufacturing, it eliminates air (pressure) leaks and thus increases performance.The pressure adjustment is done with a rotary ring that allows very fine pressure adjustment. The 4 mm pressure arm (6 mm can be purchased as a separate accessory) is compatible with R-hop and Standard-Hop rubber bands.The chamber also features a CNC barrel lock that holds the barrel firmly in place, preventing the barrel from rotating or wobbling. Another new feature is the brass side plates that snap into the grooves of the outer barrel and aid in centering the chamber. In addition, this chamber has a special ball catch with a lever, so youyou will not have any bullets fall out when you pull the magazine (as is common with standard hop-up chambers). To release the marbles from the chamber you need to press the lever.

Overall length: 51.65 mm
Overall height: 38,75 mm
Outside diameter of the input adapter (to fit into the gearbox): 12 mm
Outer diameter of hub (to fit into outer barrel): 12 mm
Inner diameter of hub (to fit nozzle): 8 mm
Outer diameter of the feed (for the cartridge): 8.85 mm
Feeder length (for magazine): 6 mm

Encompasses:

1 x CNC aluminium Hopup chamber M4i Pro (with ball catch system).
2 x CNC acrylic side cover
2 x CNC brass 2.9 mm side wing
1 x CNC steel pivot pin
1 x CNC aluminium Hopup lever
1 x CNC aluminium soft round tip
1 x CNC aluminium soft flat pressure plate (4 mm)
1 x CNC aluminium hard concave pressure plate (4 mm)
3 x steel spring
1 x CNC steel spring guide
1 x steel upper compression spring
1 x steel centre compression spring
1 x CNC Delrin Locking C-Clip
1 x CNC brass barrel spacer
1 x Brass barrel O-ring bracket
1 x CNC aluminium rotary knob
1 x CNC aluminium inlet adapter (OD 12 mm)
1 x CNC brass input spacer

Compatible with most ICS CXP/CS4/EBB (including old models) of the M4/M16 series from AEG.

Weight: 50g

Materials: Aluminum