MAXX Model M4T CNC Aluminum Hopup Chamber/Adjuster for TM MWS M4

High-performance upgrade for your TM MWS M4 GBB: the MAXX Model CNC Aluminum Hopup Chamber/Adjuster M4T is precisely machined from a single 6061 aircraft-grade aluminum billet to deliver consistent and reliable performance.

Technical specifications & package contents

Product: integrated hopup chamber and adjuster.

Material: CNC-machined 6061 aluminum.

Adjustment control: rotary dial with numeric indicators for precise, vibration-resistant tuning.

Bolt stopper/damper: adjustable to reduce bolt carrier bounce and prevent double feeding.

Bucking compatibility: works with most GBB buckings without FPS loss or misfeeds.

Inner barrel locking: equipped with aluminum C-clip and taper locking sleeve for secure, wobble-free placement.

Single-arm-control system: innovative control mechanism (patent pending) to eliminate oscillations typical of dual-arm designs.

Serviceability: removable pivot pin for easy maintenance.

Performance boost: may increase FPS by 10–30 over stock setup.

Includes: chamber + rotary knob, Delrin bolt stopper, O-rings, damper plate, lever assembly, springs, locking hardware, and three types of nubs (soft round, soft flat 6 mm, hard concave 6 mm) plus precision components.

User benefits

Enhanced shot reliability and consistency.

Very precise and repeatable hop-up adjustments.

Eliminates inner barrel wobble for better shooting groups.

User-friendly installation with modular, serviceable parts.

Built for long-lasting upgrades in GBB platforms.

Warnings & usage notes

Eye protection is highly recommended during installation.

Professional installation advised due to mechanical complexity.

Use appropriate lubricant on pivot pin and locking components.

Do not modify this product.

Complies with the General Product Safety Regulation (GPSR) and applicable Italian product safety laws.