SKU: 22681673488

MAXX CNC Aluminum M4 Hop Up Chamber ME Pro

$71.99 $79.99
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Description

MAXX CNC Aluminum M4 Hop Up Chamber ME ProPRODUCT INFORMATION CNC Aluminum Hopup Chamber ME Pro (with BB Latching System) unit is precisely made to improve accuracy and ensure consistent air seal for Tokyo Marui (include KRYTAC, except KWA) M4 M16 Standard AEG series. The Hopup Chamber ME unit has a precision rotary dial design for fine hopup adjustments, also re engineered the hopup levers and concave nubs to work best with R hop, Flat Hop and Standard Hop to keep the BBs shooting straight

PRODUCT INFORMATION

 

CNC Aluminum Hopup Chamber ME Pro (with BB Latching System) unit is precisely made to improve accuracy and ensure consistent air seal for Tokyo Marui (include KRYTAC, except KWA) M4/M16 Standard AEG series. 
The Hopup Chamber ME unit has a precision rotary dial design for fine hopup adjustments, also re-engineered the hopup levers and concave nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot. 
The Hopup Chamber ME unit is designed to accept the nozzle length from 21.00mm to 21.25mm, and fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs. 
The Hopup Chamber ME Housing is equipped with a new CNC Delrin Locking C-Clip design to hold barrel tight without wobbling and twisting, and 3 compression springs on top, at bottom and in center of housing to ensure the hopup unit is exactly centered, straight and air tight at all times when adapted to any V2 gear boxes with 11mm or 11.5mm inner bore. 
More than that, the Hopup Chamber ME Pro unit is specially designed with BB Latching System to prevent dropping BBs after removing the magazine. The Latching System can be also manually opened to release BBs from inside hopup chamber by hand. 

***The UV LED Tracer and Electronic Module are optional add-ons to glow BBs in the dark. Operating Voltage from 7VDC - 15VDC (2-4 cells LiPo, 6-13 cells NiCad). (Sold separately) 
***The Empty Magazine Detection Sensor and Electronic Switch Controller are optional add-ons to stop Motor/HPA firing when the magazine is empty. (Sold separately) 
***Test results: FPS might be increased from 10FPS to 30FPS over stock setup. Please check your FPS!

 

  Includes
1 x CNC Aluminum Hopup Chamber ME Pro (with BB Latching System) unit
2 x Strong Clear Vinyl Cover
1 x CNC Aluminum Standard-Hop Arm
1 x CNC Aluminum R-Hop Arm
1 x Silicone Rubber Standard-Hop Nub Damper
1 x Silicone Rubber R-Hop Nub Damper
1 x CNC Aluminum 4.5mm length Precision R-Hop Concave Nub
1 x CNC Aluminum 6mm length Precision R-Hop Concave Nub
1 x CNC Brass Threaded Slot Pin
1 x CNC Delrin Locking C-Clip
1 x CNC Barrel Brass Spacer
1 x Brass Spacer Holder Oring
3 x Steel Compression Spring

 

  Specification
Overall Length: 51mm
Overall Height: 37.75mm
Hub Outer Diameter (to fit into Gear Box): min 11mm - max 11.5mm
Hub Outer Diameter (to fit into Outer Barrel): min 12mm
Hub Inner Diameter (to fit Nozzle): max 8.3mm
Feeder Outer Diameter (to fit magazine): min 9.25mm
Feeder Length (to fit magazine): max 6.25mm
Material: Aluminum 6061

 

  Features
Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability
Improved accuracy and ensure consistent air seal for Tokyo Marui (include KRYTAC, except KWA) M4/M16 Standard AEG series
Precision rotary dial design for fine hopup adjustments
Re-engineered the hopup levers and concave nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot
Removable Brass Threaded Slot Pin for setup and maintenance
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
Equipped with 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 V2 gear boxes with 11mm or 11.5mm bore
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
The UV LED Tracer and Electronic Module to glow BBs in the dark ready!
The Empty Magazine Detection Sensor to stop Motor/HPA firing ready!

 

  Weight
N/A grams

 

  Usage
Compatible with most Tokyo Marui (include KRYTAC, except KWA) M4/M16 standard AEG version 2 gear box

 

  Requires
Wearing eye protection is recommended
Use proper tools for disassembly and reassembly the gear box with great care due to spring tension
Bearing lubricant oil/grease is recommended for smooth operation

 

  Instruction
Instruction Manuals are included

 

Tokyo Marui® is a registered trademark of Tokyo Marui Co., Ltd. 
KRYTAC® is a registered trademark of KRISS Systems SA in the U.S. and other countries. 
KWA® is a registered trademark of KWA Performance Industries, Inc.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22681673488

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4.7 ★★★★★
Based on 23 reviews
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Product Reviews
G
Verified Purchase
Geobub
Whiting, US
★★★★★ 3
Seams Separate Quickly
Size: 8-9, Color: Red/Black Check
They fall apart. The seams are terrible and almost immediately separate. Although they are warm and comfortable until stuff comes through the separated seams.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
D
Verified Purchase
David Pritchett
Lowell, US
★★★★★ 5
Meeting my expectations....
Size: 14-15, Color: Grey/White Check
I am a male with pretty large feet (Mens size 14US) and wanted some very warm slippers to wear around the house. I have nerve issues in my toes and if I don't keep my feet very warm they start to hurt. I wanted something both comfortable and warm. I received these a few days ago and so far they have done a great job at keeping my feet warm. The linings are thick and fluffy and the bottoms feel like they have a memory foam inner sole in them. The tops can either be worn up or rolled down. The actual soles are a soft leather-like material. They are thicker than normal cloth, but not hard like rubber soled slippers (I actually wanted something that was more of a slipper and less of a "shoe"). The only down side is that they don't really seem to have a left and right to them (both slippers seem identical), and for awhile no matter how I wore them, they felt a bit like they were on the wrong feet. However, they seem to have formed themselves to my feet and now (through wearing them) it definitely feels like there is a left and a right. I don't know how long these will last, but they were not expensive, so if I get a few months of wear from them, I will be happy and will just order another pair when these wear out. They aren't the most attractive slippers in the world, but they aren't horrible looking and they are very functional.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2025
J
Verified Purchase
John Palmer
Bozeman, US
★★★★★ 4
for polar fleece slippers with leather soles, these are quite nice
Size: 8-9, Color: Red/Black Check
I bought these to replace some Mug Lugs slippers last fall after they had started to come apart from barely a year of use (they were knitted) and have been wearing them constantly since then. The polar fleece does easily pill somewhat but get a hard use and are quite comfortable too. I wear these in the house most of the time as my feet do not like to wear shoes all day. They are comfortable, and do seem to hold up well. The only other issue is until I get my office chair mat replaced, these catch and can cause problems and have a little, but not enough to worry too much about. They supposedly have an anti slip design on the bottom, but if flour falls on the kitchen floor, not so slip resistant. I chose these as one, they are red, but also plaid and like them a lot. Hopefully, I get more than a years use out of them. I have had several polar fleece sock type slippers similar to these in the past, and the last polar fleece pair in Dk Blue and from Land End finally after several years of constant use, the stitching began to come apart and the sole was separating from the body of the slipper on one slipper. They do keep the feet warm, with or without socks and can, at times, get my feet too warm but I enjoy them quite a bit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2025
A
Verified Purchase
avalancheryder
New York, US
★★★★★ 5
Absolute game changer for chronically dry feet/cracked heels
Size: S (up to size 7)-Beige
I had recently bought a pair of silicone heel/ankle wraps to fill out my boot a little since I noticed my heels were lifting when I was skating. I tested them out around the house and noticed they left my heels softer while the rest of my sockless feet got quite dry. So I got these full foot silicone socks to see the effect of having my whole foot covered. I slather the entirety of my feet with Dr. Scholl's Severe Cracked Heel Restoring Balm (love how convenient it is to apply it to my feet with the solid stick form) and then slip them into these silicone socks. After just a couple hours, when I pull out my feet they're (a teeny bit sweaty at first), but then overall soft and smooth and have absorbed the balm fully leaving barely any residue in the silicone sock. I find these silicone socks generally comfortable; I wear them in the evenings while relaxing on the couch, take them off after a couple hours and let my feet breathe a bit, and then reapply my balm and socks and wear them to bed. If I wake up in the middle of the night, which I almost always do (not because of the socks), I'll take the socks off and allow my feet to breathe again. I wear a woman's size 6 shoe and the small size is pretty comfortable. However, I made the mistake of wearing them while being on my feet for a couple hours straight during household chores -- they must've somehow cut off my circulation a bit with the standing, so I wouldn't recommend wearing these silicone socks while being active. And since they're not exactly my foot size, they slide around sometimes and will start to feel tight at my big toe. But if that happens, I just tug on the toe area of the sock to give my big toe more wiggle room and problem solved. Prior to wearing these socks, I was soaking and doing heavy duty exfoliation of my feet every week. These socks seem like they'll work to help me extend the time between soakings and exfoliations. The 5 pack is a great value. So far none have torn, so they seem rather durable. Not sure what I could even do to tear a hole in these.
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Reviewed in the United States on January 16, 2026
B
Verified Purchase
Beverly Durham
Houston, US
★★★★★ 5
Works wonders
Size: M (up to size 9)-Beige
Works wonders for dry feet, like really dry, hard feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026

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