SKU: 7121609630

MAXX CNC Aluminum Hop Up Chamber M4A Pro

Sale price$94.49 Regular price$104.99
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Description

MAXX CNC Aluminum Hop Up Chamber M4A ProProduct Description 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

Product Description

 

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.

***The Dual UV LED Tracer Module is an add-on option to glow BB in the dark. Operating Voltage from 7VDC - 15VDC (2-4 cells LiPo, 6-13 cells NiCad). (Sold separately)
***Test results: FPS might be increased from 10FPS to 30FPS over the stock setup. Please check your FPS!

 

  Includes
1 x CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit
2 x CNC Acrylic Side Cover
2 x CNC Brass 2.5mm 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 Oring
1 x CNC Aluminum Rotary Dial Knob
1 x CNC Aluminum Inlet Adaptor (OD11mm)
1 x CNC Brass Inlet Spacer

 

  Specification
Overall Length: 51.65mm
Overall Height: 37.75mm
Inlet Adaptor Outer Diameter (to fit into Gear Box): 11mm
Hub Outer Diameter (to fit into Outer Barrel): 12mm
Hub Inner Diameter (to fit Nozzle): 8mm
Feeder Outer Diameter (to fit magazine): 8.85mm
Feeder Length (to fit magazine): 6mm
Material: Aluminum 6061

 

  Features
Machined from a solid aircraft aluminum block with tight tolerances to achieve the most accuracy, consistency, and durability
Performed accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series
Precision Rotary Dial Knob for fine hopup adjustments
Re-engineered 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
Removable Steel Pivot Pin for ease of setup and maintenance
Accepted 21.00mm to 21.25mm nozzle length
Fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BB during use
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 sold separately)
Mounted the removable CNC Brass Side Wings to slide smoothly into the outer barrel slots
Included an advanced CNC Delrin Locking C-Clip to hold the inner barrel tight in place without wobbling and twisting
Equipped with 2 compression springs on top and center to ensure the hopup unit is seated straight and air tight during use
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
Compatible with any 11mm inner bore AEG Gearbox/HPA Engine nozzle outlets
The Dual UV LED Tracer Module to glow BB in the dark ready!

 

  Weight
N/A grams

 

  Usage
Compatible with most Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series

 

  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.
G&G® is a registered trademark of G&G Amarment Taiwan 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: 7121609630

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4.3 ★★★★★
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Kortney
Chelsea, US
★★★★★ 5
Yummy taste!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12), Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I’ve been using the Core Power Elite protein shakes and they’ve honestly become a go-to. The taste is super smooth and not chalky at all—more like chocolate milk than a typical protein drink. Each bottle packs 42g of protein, which is perfect after a workout or when I need something quick and filling. I also love that it’s lactose-free and easy on my stomach. Great for busy days, gym recovery, or hitting protein goals without overthinking it. Definitely keeping these stocked
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
K
Verified Purchase
Kindly Said
Boise, US
★★★★★ 5
The Best Protein Drink I've Ever Had!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
These are hands down my favorite protein shakes. I’ve tried quite a few different brands over the years, but I honestly don’t drink any other protein drinks now besides these. The chocolate flavor is absolutely delicious and tastes much better than most protein shakes I’ve had. They’re smooth, not chalky whatsoever like other protein drinks, and have a great balance of sweetness without tasting artificial. The high protein content is also a huge plus for post-workout recovery or a quick meal on busy days. I always keep these stocked in my fridge and restock every other week!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
P
Verified Purchase
Professional light bulb reviewer
Omaha, US
★★★★★ 5
No chalky aftertaste
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
Been buying this product for years. Good amount of protein for pre/post workout. A little pricey but worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
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Verified Purchase
pen_name
Massapequa, US
★★★★★ 5
Delicious!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I’ve tried a lot of protein shakes and this one is hands down my favorite choice. It tastes like a delicious glass of chocolate milk, without being overly sweet the way some other protein drinks are, and the texture is perfect - neither chalky nor too thick. Some folks don’t like the sugar in the ingredients list but for me, 42g of protein in 230kcal is a godsend for meeting my daily macros. And it’s lactose free so zero issues with digestion. I use a little in my morning coffee as a coffee creamer and drink the rest with breakfast - a great and easy way to start my day with a good amount of protein.
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Reviewed in the United States on March 30, 2026
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Verified Purchase
Giamji
Cuba, US
★★★★★ 4
Smooth, chocolate milk flavor with a massive protein punch
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12), Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
The Context: I’ve tried a wide variety of protein supplements over the years, and many of them are a struggle to get down due to a thick, chalky texture or a chemical aftertaste. I picked up the Core Power Elite 42g shakes to use as a convenient meal replacement on busy days, and they have quickly become my go-to. The Performance: Flavor and Texture: The standout feature here is the taste. It genuinely tastes like high-quality chocolate milk rather than a supplement. It is remarkably smooth and lacks that dry, chalky finish that usually plagues high-protein drinks. Satiety: With 42g of protein in a single 14oz bottle, these are incredibly effective at keeping you full. When used as a meal replacement, I’ve found that they keep hunger at bay for significantly longer than lighter shakes or snacks. Convenience: The 12-pack is a great value, and the bottles are perfect for a grab-and-go lifestyle. They don't require any mixing or shaking to get rid of clumps, which makes them ideal for the car or the office. Nutritional Profile: For the amount of protein you're getting, the calorie count and sugar levels are well-balanced, making it easy to fit into a variety of nutritional plans without feeling like a "cheat" meal. Pros: Great Taste: No chalky texture or medicinal aftertaste. High Protein Content: 42g is a significant amount that helps with satiety. Solid Value: Purchasing the 12-pack is much more cost-effective than buying individual bottles. Cons: Thickness: Because it is milk-based, it is a bit richer than a water-based shake, which some might find heavy if they aren't used to it. The Verdict: If you want the benefits of a high-protein supplement but hate the typical "protein shake" experience, these are the answer. They are delicious, filling, and convenient. Whether you're using them for recovery or just as a quick meal replacement, they are one of the best-tasting options on the market.
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Reviewed in the United States on May 14, 2026

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