SKU: 25780780722

MAXX CNC Aluminum Hopup Chamber M4W (for MTW M4)

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Description

MAXX CNC Aluminum Hopup Chamber M4W (for MTW M4)CNC Aluminum Hopup Chamber M4W unit is precisely machined to perform accurately and consistently on HPA MTW Milspec, Forged, Billet and MTW 9 series. The Hopup Chamber M4W 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 M4W unit is designed to

CNC Aluminum Hopup Chamber M4W unit is precisely machined to perform accurately and consistently on HPA MTW Milspec, Forged, Billet and MTW-9 series.

The Hopup Chamber M4W 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 M4W unit is designed to accept the HPA MTW 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 M4W 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. 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.

Manufacturer: Maxx Model

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 HPA MTW Engine M4 nozzle length
  • 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 11mm inner bore 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

Hopup Kit Includes:

  • 1 x CNC Aluminum Hopup Chamber M4W unit
  • 2 x CNC Acrylic Side Cover
  • 2 x CNC Brass 2.6mm 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)


Overall Length: 51.15mm
Overall Height: 22mm
Inlet Adaptor Outer Diameter (to fit into HPA Nozzle Outlet): 11mm
Hub Outer Diameter (to fit into Outer Barrel): 12mm
Hub Inner Diameter (to fit Nozzle): 8mm
Application: For most HPA MTW Milspec, Forged, Billet and MTW-9 series 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.

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: 25780780722

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Jacee
Charlottesville, US
★★★★★ 5
A MUST READ!
Format: Paperback
If you are desiring to know your full-self, this book is for you. The author's gift of writing opens up biblical truths that will help you become who God wants you to be. Such an insightful book giving tons of encouragement. Very much worth the read. Finished it in two weeks. A book you just don't want to put down, even for a minute. It will change your life.
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Reviewed in the United States on March 17, 2026
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Debbie
Birmingham, US
★★★★★ 4
Becoming aware of how God is moving in you and through you
Format: Kindle
"Being Fully Know" is about becoming "aware of how God is moving in you and through you." The author talked about how people hold back from being vulnerable or from doing what they believe God is calling them to do for fear of rejection. About not getting stuck thinking things are impossible for you but basing our thoughts and actions on God's truth. When we fear we're unlovable, remember God's steadfast love. Stop negative thought cycles, and allow the Holy Spirit's power to fully be at work in your life. Recognizing God's presence, seeing ourselves as God does, and surrendering to God. She talked about how normal life can hold opportunities to do God's work and show his love, but also about being willing to stretch beyond your comfort zone to do something God's calling you to do. At the end of each chapter, she provided 3 Bible verses and how to apply them in your life. There were also 3 questions to help you think about what she said in the chapter. At the end of the book, there's a brief section with tips for a 21 day fast from media, certain foods, etc. The author used personal stories to illustrate what she was teaching, and her writing style was casual and encouraging. Overall, I'd recommend this insightful book. || Read a free eArc provided by Crossway. All opinions expressed are my own.
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Reviewed in the United States on March 4, 2025
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Krista Pettiford
Louisville, US
★★★★★ 5
True joy is found in an intimate relationship with Christ - knowing Him & being known by Him.
Format: Paperback
Life’s unexpected twists and turns often leave us questioning our purpose and identity. In Being Fully Known, the author offers a deeply personal and theologically rich exploration of what it means to be truly seen, loved, and transformed by God. The book’s central message revolves around the idea that true joy isn’t found in external success or fleeting happiness, but in an intimate relationship with Christ. It speaks directly to those who have experienced unhealed trauma, describing it as a “bully of the soul” that weighs down the spirit and manifests in the body. Through scripture, personal reflections, and practical wisdom, the author guides readers on a journey toward healing and self-discovery. One of the book’s strengths is its ability to take profound theological concepts and present them in a way that feels both accessible and deeply personal. The themes of belonging, identity, and spiritual growth are woven throughout, encouraging readers to embrace their brokenness as a pathway to a fuller life in Christ. For those facing seasons of change, uncertainty, or emotional wounds, Being Fully Known serves as both a comforting companion and a call to deeper faith. It challenges readers to move beyond survival mode and step into the abundant life that comes from truly knowing and being known by God. A heartfelt, thought-provoking read, this book is a must for anyone seeking healing, identity, and the courage to embrace their faith in the ordinary moments of life.
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Reviewed in the United States on March 5, 2025
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Shelley P
Waukegan, US
★★★★★ 5
Great quality at an unbeatable price!
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Reviewed in the United States on February 24, 2023
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William C. Binder III
Chelsea, US
★★★★★ 5
Excellent cabinet towel rack.
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