CNC Aluminum Hopup Chamber Black Edition for M4 AEG

The design with the arm pressing on the Nub is steel sheets with different thicknesses, which combine to create the desired elasticity, thereby helping to increase the accuracy and consistency of the BB. Accompanied by 3 different types of aluminum Nubs.

The Gearbox input adapter can be changed, with the input adapter OD12mm, OD11.5mm, OD11mm outside diameter to ensure the hopup unit is accurately mounted to the center of the nozzle outlet of the AEG Gearbox/HPA Engine.

FPS can be increased from 10FPS to 30FPS compared to the stock setting.

CNC Aluminum Hopup Chamber is precision machined to operate accurately and consistently on the Tokyo Marui product line (including G&G, KRYTAC) Standard M4/M16 AEG, ICS CXP/CS4/EBB (include old models) M4/M16 AEG series, HPA PolarStar Engines on standard M4/M16 platform.

Included:

1 x CNC Aluminum Hopup Chamber

CNC Hop Up Chamber AR15 BASIC

Our good old RetroArms hop Up chamber for AR15s with recently finetuned main shaft and feeding shaft drilling.

The chamber is machined on a precise CNC machine from aviation-grade aluminium  EN AW 7075, is anodized and even though the chamber doesn't have any extra adjustable features such as feeding regulator etc., it is already R-hop ready and it's a powerful upgrade part machined with tight tolerances.

On a feeding shaft, you can find an o-ring, which prevents unfired BBs from falling out when reloading.

Another feature is a collet nut instead of a centering ring in the front of the chamber. When the collet nut is tightened, it holds the inner barrel and the chamber centered and tightly together and thus mitigating any movement of the barrel. Just make sure that you do not let the barrel rotate in the chamber when you tighten the nut. Another advantage of this nut is that it can hold barrels with different outer diameters (typically 8.4 - 8.5 mm).

Recent fine tuning of the main shaft and feeding shaft ensures compatibility with most HopUp rubbers and improves feeding reliability and consistency of the chamber.

Hop Up Chamber BASIC is designed for players, who want a 100% reliable and precise Hop Up chamber that just works without necessity to tune anything.

CNC Aluminum Hopup Chamber M4E (with BB Latching System) unit is precisely machined to perform accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series.

The Hopup Chamber M4A unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, the precision Hopup Lever and 4mm Bucking Nubs (6mm Bucking Nubs are optional) to perform best with R-Hop and Standard-Hop to keep the BB shooting accurately and consistently on every single shot.

The Hopup Chamber M4A unit is designed to accept 21.00mm to 21.25mm nozzle length, and fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use.

The Hopup Chamber M4A unit is wisely equipped with an interchangeable Inlet Adaptor OD11mm to ensure the hopup unit is inserted exactly in the center of the 11mm inner bore AEG Gearbox/HPA Engine nozzle outlet without wobbling. (Inlet Adaptor OD11.5mm and OD12mm are optional)

Also mounted the removable CNC Brass Side Wings to slide smoothly into the outer barrel slots, and included an advanced CNC Delrin Locking C-Clip to hold the inner barrel tight in place without wobbling and twisting.

More than that, the Hopup Chamber M4A Pro unit is specially designed with a new BB Latching System to prevent BB dropping after removing the magazine. The Latching Arm can also be manually pressed to release the remaining BB from inside the hopup chamber.

CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series.

The Hopup Chamber M4A unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, the precision Hopup Lever and 4mm Bucking Nubs (6mm Bucking Nubs are optional) to perform best with R-Hop and Standard-Hop to keep the BB shooting accurately and consistently on every single shot.

The Hopup Chamber M4A unit is designed to accept 21.00mm to 21.25mm nozzle length, and fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use.

The Hopup Chamber M4A unit is wisely equipped with an interchangeable Inlet Adaptor OD11mm to ensure the hopup unit is inserted exactly in the center of the 11mm inner bore AEG Gearbox/HPA Engine nozzle outlet without wobbling. (Inlet Adaptor OD11.5mm and OD12mm are optional)

Also mounted the removable CNC Brass Side Wings to slide smoothly into the outer barrel slots, and included an advanced CNC Delrin Locking C-Clip to hold the inner barrel tight in place without wobbling and twisting.

More than that, the Hopup Chamber M4A Pro unit is specially designed with a new BB Latching System to prevent BB dropping after removing the magazine. The Latching Arm can also be manually pressed to release the remaining BB from inside the hopup chamber.

CNC Aluminum Hopup Chamber M4P Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently with HPA PolarStar Engines on standard M4/M16 platform.

The Hopup Chamber M4P unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, the precision Hopup Lever and 4mm Bucking Nubs (6mm Bucking Nubs are optional) to perform best with R-Hop and Standard-Hop to keep the BB shooting accurately and consistently on every single shot.

The Hopup Chamber M4P unit is designed to accept the HPA PolarStar Engine M4 nozzle length, and fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use.

The Hopup Chamber M4P unit is wisely equipped with an interchangeable Inlet Adaptor OD11mm to ensure the hopup unit is inserted exactly in the center of the 11mm inner bore HPA Engine nozzle outlet without wobbling. (Inlet Adaptor OD11.5mm and OD12mm are optional)

Also mounted the removable CNC Brass Side Wings to slide smoothly into the outer barrel slots, and included an advanced CNC Delrin Locking C-Clip to hold the inner barrel tight in place without wobbling and twisting.

More than that, the Hopup Chamber M4P Pro unit is specially designed with a new BB Latching System to prevent BB dropping after removing the magazine. The Latching Arm can also be manually pressed to release the remaining BB from inside the hopup chamber.