CNC Aluminum HopUp Chamber M4A - PRO

The M4A - PRO CNC Hop-Up Chamber (with bullet catch) is made of aircraft aluminum and designed for Tokyo Marui M4/M16 standard AEGs (including G&G, KRYTAC, except KWA). Its design eliminates air leaks and noticeably increases performance.

Pressure adjustment is done with a rotary ring, so adjustment is very fine and precise. 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 loss of performance.

The M4A Pro chamber features an interchangeable OD11mm 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 washers that slide into the grooves of the outer barrel and assist in centering the chamber.
In addition, this chamber has a special lever-action ball catch so that the balls no longer fall out when the magazine is pulled (as is common with standard hop-up chambers). To release the marbles from the chamber you need to press the lever.

Features:

• Precision manufactured from a block of aircraft aluminum using CNC technology
• Compatible with M4 / M16 carbine replicas in Tokyo Marui standard (including G&G or Krytac replicas, but NOT KWA)
• Rotary knob for adjustment
• Redesigned precision Hop-Up levers and 4mm Bucking Nubs (6mm versions are optional), ensuring smooth operation with standard and Rhop elastic
• Removable steel pin for adjustment and maintenance
• Works with 21.00mm to 21.25mm nozzles
• Fully compatible with most soft and hard HU elastic materials available on the market, with zero FPS drops and ball drops
• Equipped with a special CNC Delrin Locking CClip, preventing vibration and barrel movement
• Equipped with 2 compression springs at the top and middle of the chamber to ensure a perfect and secure seating in the replica
• Equipped with 11mm gearbox input adapter (11.5 and 12mm versions available separately) to ensure central nozzle arrangement in the chamber and reduce wobble
• Added, replaceable brass side wings to improve chamber seating in the outer barrel
• Redesigned "BB Latching System" to prevent the BB from falling out when the magazine is removed from the replica
• The firing pin holding the BB's can be squeezed by hand to release the BB's from the chamber
• Option to mount a BB illumination unit (not included)

Specifications:

• For: M4 / M16 TM, Krytac and G&G replicas
• Material: 6061 aluminum
• Weight: 20g
• Color: Red
• Manufacturer: Maxx Model Products
• Length: 51.65mm
• Height: 37.75 mm
• Outside diameter (for mechabox): 11mm
• Outer diameter (for outer barrel): 12 mm
• Inner diameter (to nozzle): 8 mm
• Outside diameter (for the feeder): min. 8.85 mm
• Feeder length (for magazine): max 6 mm
• Design: Aluminium 6061

The set includes:

• 1 x CNC chamber with BB Latching system
• 2 x clear CNC vinyl cover
• 2 x 2.5 mm CNC brass side wing
• 1 x CNC steel pivot pin
• 1 x CNC aluminium Hop-Up arm
• 1 x CNC aluminium soft round tip
• 1 x CNC aluminium soft flat core (4 mm)
• 1 x CNC aluminium hard concave tip (4 mm)
• 3 x Steel Nub Spring
• 1 x steel spring guide
• 1 x steel upper compression spring
• 1 x steel central compression spring
• 1 x Delrin Locking C-Clip CNC
• 1 x CNC brass barrel spacer
• 1 x Brass O-ring spacer
• 1 x CNC aluminium adjustment knob
• 1 x CNC aluminium input adapter (11 mm)
• 1 x CNC brass input spacer