Features Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability Precision rotary dial design for fine hopup adjustments Re-engineered the hopup levers and nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot Accepted the nozzle length from 21.00mm to 21.25mm Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs Equipped with a new CNC Delrin Locking C-Clip design to hold barrel tight without wobbling and twisting, 3 compression springs on top, at bottom and in center of housing to ensure the hopup unit is exactly centered, straight and air tight Compatible with any 12mm inner bore ICS AEG Gearbox/HPA Engine nozzle outlets Specially designed with BB Latching System to prevent dropping BBs after removing the magazine, manually opened to release BBs from inside hopup chamber by hand CNC Aluminum Hopup Chamber M4Gi (with BB Latching System) unit is precisely machined to perform accurately and consistently on ICS M4 AEG series rifles.
The Hopup Chamber M4Gi unit is built with an aluminum rotary dial knob for fine hopup adjustments, the precision hopup lever and 4mm bucking nubs to perform best with R-Hop and standard-hop to keep the BB shooting accurately and consistently on every single shot.
The Hopup Chamber M4Gi 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 BBs during use.
The Hopup Chamber M4Gi unit is wisely equipped with an interchangeable Inlet Adaptor OD12mm to ensure the hopup unit is inserted exactly in the center of the 12mm inner bore ICS AEG outlet without wobbling. 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 tightly in place without wobbling and twisting.
Additionally, the Hopup Chamber M4Gi unit is specially designed with a new BB Latching System to prevent BBs from dropping after removing the magazine. The Latching Arm can also be manually pressed to release the remaining BB from inside the hopup chamber.
Manufacturer: Maxx Model
Specifications: Hopup Kit Includes: 1 x CNC Aluminum Hopup Chamber M4Gi (with BB Latching System) unit 2 x CNC Acrylic Side Cover 2 x CNC Brass 2.9mm Side Wing 1 x CNC Steel Pivot Pin 1 x CNC Aluminum Hopup Lever 1 x CNC Aluminum Soft Round Nub 1 x CNC Aluminum Soft Flat Nub (4mm) 1 x CNC Aluminum Hard Concave Nub (4mm) 3 x Steel Nub Spring 1 x CNC Steel Spring Guide 1 x Steel Upper Compression Spring 1 x Steel Center Compression Spring 1 x CNC Delrin Locking C-Clip 1 x CNC Brass Barrel Spacer 1 x Brass Barrel Spacer Holder O-Ring 1 x CNC Aluminum Rotary Dial Knob 1 x CNC Aluminum Inlet Adaptor (OD12mm) 1 x CNC Brass Inlet Spacer 1 x Shim Set 1 x O-Ring Set Overall Length: 51.65mm
Overall Height: 37.75mm
Application: ICS M4 / M16 AEG rifles
Material: Aluminum 6061
Test Results: FPS might be increased from 10FPS to 30FPS over the stock setup. Please check your FPS!
Disclaimer: Professional installation highly recommended. Please use discretion when installing custom parts as fit and compatibility may vary. Modification may be required. Professional installation recommended.
About Maxx Model Products Maxx Model Products design, manufacture, and make high quality parts for Airsoft products.
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" The Maxx M4A -PRO is an excellent Hopup unit. I installed it in an Umarex HK M110 A1. I had to use a Dremel and do some heavy modification to the M110's hopup adapter (the black polymer barrel extension that interfaces the hopup unit with the barrel) in order to get it to fit, as the stock hopup unit for the M110 is very slim and aftermarket hopup units don't fit. The Maxx M4A is a high quality, aluminum chamber, with clear side windows so you can see into the chamber. It has a nice BB retention system that prevents excess BB's from falling out when you remove the magazine. Very nice feature. The M4A comes with a flat nub installed and I used that with an R-Hopped barrel patch and smooth bucking. This setup is lifting .40g BB's and providing great range and accuracy in my rifle. Highly recommended.
" Went into my A&K SR-25 build with no issues at all. I’m a big fan of the bb retention, AMS has a mag limit and every bb counts.
" Have an M4A in an AEG build and an M4P in an HPA Jack build and they are both great. Easy to install and make small adjustments.
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