ProWin CNC Aluminium HOP-Up Chamber for M4/AR15 AEG

The ProWin CNC Aluminium HOP-Up Chamber for M4/AR15 AEG is a premium internal upgrade designed to improve air seal, consistency and long-term reliability for compatible rifles. Constructed using precision CNC machining from aircraft-grade aluminium, this HOP-up unit offers significant durability and performance improvement over standard cast units. The rigid construction ensures stable alignment between the nozzle, bucking and barrel, resulting in improved compression and more consistent shot-to-shot performance. Its anodised surface finish adds corrosion resistance while reducing wear from repeated adjustments and maintenance. Designed as a high-performance upgrade component, this chamber is ideal for players looking to enhance accuracy, efficiency and reliability in their M4 or AR15 platform AEG. Compatibility includes Tokyo Marui and most other standard-spec M4/M16 series Airsoft AEG rifles, making it a versatile choice for builders and techs alike.

Brand

ProWin

Category

gear

From

34.99 GBP

Where to buy

• Patrol Base — 34.99 GBP In stock

Specs

Upgrades & Maintenance > General Internal Parts