Maxx Model CNC Aluminum Hopup Chamber for M4 Airsoft AEG Rifles

Maxx Model CNC Aluminum Hop-Up Chamber M4G for Airsoft AEGs – Precision-Machined Performance Upgrade

Upgrade your M4 or M16 AEG with the Maxx Model CNC Aluminum Hop-Up Chamber M4G, a premium precision-machined hop-up unit designed for shooters who demand maximum accuracy, consistency, and build quality. Constructed from aircraft-grade CNC-machined 6061 aluminum, this hop-up unit is engineered to outperform stock units in every way, making it a go-to upgrade for competitive airsoft players and HPA users alike.

Precision Meets Innovation

The Maxx M4G Hop-Up Chamber is not just another hop-up; it’s a precision performance tool built from the ground up. The entire unit is CNC-machined from a solid block of high-grade aluminum for exceptional durability, tight tolerances, and minimal wobble. This results in a better air seal, more consistent FPS, and dramatically improved shot-to-shot accuracy.

The rotary dial design allows for fine hop-up adjustments, ensuring each BB flies straight and hits its mark. Whether you’re using R-Hop, Flat-Hop, or Standard-Hop setups, this hop-up chamber includes redesigned levers and nubs that optimize performance across the board.

Advanced Features for Serious Players

• BB Latching System: Prevents BBs from falling out when the magazine is removed — a must-have for tactical reloads. The latch can also be manually released to clear remaining rounds.

• Interchangeable Inlet Adaptors: Includes both 11mm and 12mm inlet adaptors for perfect alignment with various HPA engine nozzle outlets. This ensures the hop-up sits centered and snug every time.

• Compatible with HPA Systems: Designed for use with PolarStar HPA engines, this hop-up accepts 21.00mm to 21.25mm nozzles, making it one of the most versatile and HPA-friendly hop-ups available.

• Delrin Locking C-Clip System: Keeps your inner barrel tight and wobble-free, thanks to a smart locking design and three compression springs (top, bottom, and center). The result? Perfect barrel alignment and unbeatable air seal.

• Customizable Tuning: Includes multiple CNC-machined nubs (soft, hard, flat, and concave), springs, shims, and a complete hardware kit so you can fine-tune performance to your exact needs.

Built for Compatibility and Performance

The Maxx Model M4G Hop-Up Chamber is designed to fit Tokyo Marui spec M4/M16 AEG rifles and is fully compatible with most aftermarket inner barrels and buckings, including both soft and hard rubber variants. It integrates seamlessly with ICS AEG gearboxes, HPA nozzle outlets, and AEG setups using gas blowback inner barrels with a C-clip cut.

Whether you’re running an advanced R-Hop build or a standard hop setup, this unit is designed to improve air seal, FPS consistency, and BB trajectory.

Specifications:

• Material: CNC Machined Aluminum 6061

• Overall Length: 51.65mm

• Overall Height: 37.75mm

• Application: Compatible with Tokyo Marui spec M4 / M16 AEG rifles

• Weight: Lightweight yet durable construction

• Included Accessories: Full tuning kit with multiple nubs, springs, spacers, adaptors, and tools for custom fit and performance

Tested Performance & Caution:

Lab testing has shown an FPS increase of 10–30 FPS over standard hop-up setups. Always check your FPS after installation to ensure compliance with field limits. Professional installation is recommended, as fit may vary depending on your rifle’s brand or internal configuration.

About Maxx Model

Maxx Model Products, Inc. began as a high-performance RC components manufacturer in 2001 under Microheli.com in Canada. Known for precision-engineered parts in the RC world, Maxx transitioned into the airsoft market in 2016 with groundbreaking hop-up designs. With constant innovation and a focus on community feedback, Maxx Model delivers industry-leading hop-up systems that have redefined airsoft performance standards.

Final Thoughts

The Maxx Model CNC Aluminum Hop-Up Chamber M4G is a professional-grade upgrade for players looking to push their airsoft AEG or HPA setup to the next level. With unmatched customization, rock-solid construction, and compatibility with a wide range of parts, it’s the perfect hop-up unit for serious airsofters demanding consistency, precision, and reliability.