The M4A Pro CNC Hop-up chamber (with bullet catch and release lever) is designed for Tokyo Marui M4/M16 standard electric weapons (including G&G, KRYTAC, except KWA). Due to the high quality and precision manufacturing, it eliminates air (pressure) leaks and thus increases performance. 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 is designed for nozzle lengths from 21.00 mm to 21.25 mm and is compatible with most soft and hard hop-up rubber bands without sacrificing performance.The M4A Pro chamber features an OD11mm replaceable inlet adapter that ensures the chamber is inserted exactly in the center of the nozzle inlet without wobbling (OD11.5mm and OD12mm adapters can be purchased as separate accessories). 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 slide into the grooves of the outer barrel and aid in centering the chamber. Additionally, this chamber has a special ball catch with a lever, so youYou will no longer experience bullets falling out when pulling the magazine out (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: 37.75mm
Outside diameter of adapter (mouth from mechabox): 11mm
Outer diameter (mouth for outer barrel): 12mm
Inner diameter (nozzle mouth): 8mm
Outside diameter (mouth for magazine): 8.85 mm
Magazine neck length: 6 mm

Includes:

1 x M4A Pro aluminum CNC Hop-up chamber (with ball catch and lever)
2 x Transparent chamber window
2 x Brass centering plates (2.5 mm)
1 x Steel CNC pin
1 x Aluminum CNC arm
1 x Silicone roller Standard-Hop
1 x Silicone roller R-Hop
1 x Aluminum CNC Concave R-Hop 4.5mm length
1 x Aluminium CNC Concave R-Hop 6mm length
1 x Aluminum CNC Round Soft Clamp
1 x Aluminum CNC Flat Clamp Soft (4mm)
1 x Aluminum CNC Concave Hard (4 mm)
3 x Steel pressure spring
1 x Steel top spring
1 x Steel barrel spring
1 x CNC barrel lock
1 x Brass CNC centering ring
1 x Rubber O-ring
1 x Aluminium CNC rotation ring
1 x Aluminium input adapter (OD11mm)

Compatible with Tokyo Marui standard M4/M16 electric weapons (including G&G, KRYTAC, except KWA).

Weight: 20g

Materials: Aluminum