Description, Features & Specifications

Description

The Maxx Model CNC Aluminum Hopup Chamber for Standard M4 AEG is engineered to deliver precision, durability, and consistent performance for serious airsoft builds. CNC machined from solid 6061 aircraft aluminum, this hopup unit is built with tight tolerances to enhance accuracy and long term reliability under demanding gameplay. Designed specifically for standard M4 and M16 AEG platforms using gas blowback inner barrels with a C Clip cut, the M4G chamber features a precision rotary dial knob that allows for fine and repeatable hop up adjustments. The re engineered hop up lever system is optimized for R Hop, Flat Hop, and Standard Hop configurations, helping keep BBs flying straight and stable on every shot. With compatibility for nozzle lengths from 21.00mm to 21.25mm and support for most aftermarket soft and hard buckings, this unit maintains FPS without unwanted BB drop.


Built for advanced AEG and HPA setups, the CNC Delrin locking C Clip secures the inner barrel firmly in place, eliminating wobble and twist that can impact shot consistency. A triple compression spring system ensures the hopup unit remains centered and air tight, while the interchangeable inlet adaptor system provides precise nozzle alignment for both standard gearboxes and HPA PolarStar engine builds. Removable CNC brass side wings allow smooth fitment into the outer barrel, and the integrated BB Latching System prevents BBs from dropping after magazine removal, with a manually actuated latch for controlled release. Compatible with Tokyo Marui and other M4 and M16 AEG rifles, as well as 12mm inner bore ICS gearboxes and HPA engine nozzle outlets, this 51.65mm hopup chamber is a high performance upgrade for players seeking improved range, tighter groupings, and dependable air seal in their airsoft rifle.

In the Box
1x CNC Aluminum Hopup Chamber M4Gi with BB Latching System unit
2x CNC Acrylic Side Cover
2x CNC Brass 2.9mm Side Wing
1x CNC Steel Pivot Pin
1x CNC Aluminum Hop Up Lever
1x CNC Aluminum Soft Round Nub
1x CNC Aluminum Soft Flat Nub 4mm
1x CNC Aluminum Hard Concave Nub 4mm
3x Steel Nub Spring
1x CNC Steel Spring Guide
1x Steel Upper Compression Spring
1x Steel Center Compression Spring
1x CNC Delrin Locking C Clip
1x CNC Brass Barrel Spacer
1x Brass Barrel Spacer Holder O Ring
1x CNC Aluminum Rotary Dial Knob
1x CNC Aluminum Inlet Adaptor OD12mm
1x CNC Brass Inlet Spacer
1x Shim Set
1x O Ring Set

Specifications:
Brand: Maxx Model
Material: Aluminum 6061
Platform: M4 / M16
Model: M4G
Replica Type: AEG
Compatibility: Tokyo Marui and other compatible M4 / M16 AEG rifles, 12mm inner bore ICS AEG Gearbox and HPA Engine nozzle outlets, HPA PolarStar Engine M4 nozzle length
Dimension: 51.65mm x 37.75mm x 0mm
Length(mm): 51.65

California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Description

The Maxx Model CNC Aluminum Hopup Chamber for Standard M4 AEG is engineered to deliver precision, durability, and consistent performance for serious airsoft builds. CNC machined from solid 6061 aircraft aluminum, this hopup unit is built with tight tolerances to enhance accuracy and long term reliability under demanding gameplay. Designed specifically for standard M4 and M16 AEG platforms using gas blowback inner barrels with a C Clip cut, the M4G chamber features a precision rotary dial knob that allows for fine and repeatable hop up adjustments. The re engineered hop up lever system is optimized for R Hop, Flat Hop, and Standard Hop configurations, helping keep BBs flying straight and stable on every shot. With compatibility for nozzle lengths from 21.00mm to 21.25mm and support for most aftermarket soft and hard buckings, this unit maintains FPS without unwanted BB drop.


Built for advanced AEG and HPA setups, the CNC Delrin locking C Clip secures the inner barrel firmly in place, eliminating wobble and twist that can impact shot consistency. A triple compression spring system ensures the hopup unit remains centered and air tight, while the interchangeable inlet adaptor system provides precise nozzle alignment for both standard gearboxes and HPA PolarStar engine builds. Removable CNC brass side wings allow smooth fitment into the outer barrel, and the integrated BB Latching System prevents BBs from dropping after magazine removal, with a manually actuated latch for controlled release. Compatible with Tokyo Marui and other M4 and M16 AEG rifles, as well as 12mm inner bore ICS gearboxes and HPA engine nozzle outlets, this 51.65mm hopup chamber is a high performance upgrade for players seeking improved range, tighter groupings, and dependable air seal in their airsoft rifle.

In the Box
1x CNC Aluminum Hopup Chamber M4Gi with BB Latching System unit
2x CNC Acrylic Side Cover
2x CNC Brass 2.9mm Side Wing
1x CNC Steel Pivot Pin
1x CNC Aluminum Hop Up Lever
1x CNC Aluminum Soft Round Nub
1x CNC Aluminum Soft Flat Nub 4mm
1x CNC Aluminum Hard Concave Nub 4mm
3x Steel Nub Spring
1x CNC Steel Spring Guide
1x Steel Upper Compression Spring
1x Steel Center Compression Spring
1x CNC Delrin Locking C Clip
1x CNC Brass Barrel Spacer
1x Brass Barrel Spacer Holder O Ring
1x CNC Aluminum Rotary Dial Knob
1x CNC Aluminum Inlet Adaptor OD12mm
1x CNC Brass Inlet Spacer
1x Shim Set
1x O Ring Set

Specifications:
Brand: Maxx Model
Material: Aluminum 6061
Platform: M4 / M16
Model: M4G
Replica Type: AEG
Compatibility: Tokyo Marui and other compatible M4 / M16 AEG rifles, 12mm inner bore ICS AEG Gearbox and HPA Engine nozzle outlets, HPA PolarStar Engine M4 nozzle length
Dimension: 51.65mm x 37.75mm x 0mm
Length(mm): 51.65

California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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XTREME Superstore by Maxx Model

MX-HOP020MG

Maxx Model CNC Aluminum Hopup Chamber for Standard M4 AEG

$88.00
$88.00
Shipping calculated at checkout.
CNC machined from solid 6061 aircraft aluminum for superior durability and tight tolerancesDesigned for standard M4 AEG platform...  Read more
  • CNC machined from solid 6061 aircraft aluminum for superior durability and tight tolerances
  • Designed for standard M4 AEG platforms using gas blowback inner barrels with C Clip cut
  • Precision rotary dial knob for fine and repeatable hop up adjustments
  • Re engineered hop up lever system optimized for R Hop Flat Hop and Standard Hop setups
  • Accepts nozzle lengths from 21.00mm to 21.25mm for broad compatibility
  • Fully compatible with most aftermarket soft and hard buckings without FPS loss or BB drop
  • CNC Delrin locking C Clip secures inner barrel firmly without wobble or twist
  • Triple compression spring system ensures centered alignment and consistent air seal
  • Interchangeable inlet adaptor system for precise nozzle alignment in HPA and AEG builds
  • Removable CNC brass side wings for smooth outer barrel fitment
  • Integrated BB Latching System prevents BB drop after magazine removal
  • Manually actuated latch arm allows controlled BB release from chamber
  • Engineered for consistent performance with HPA PolarStar engines on M4 M16 platforms
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