Maxx Model Hop-Up Chamber

This specific model is optimized for HPA PolarStar engines on M4/M16 platforms. While it is built to high tolerances, it is designed specifically to accommodate the nozzle lengths and air seal requirements of HPA systems rather than standard AEG gearboxes.

The BB latching system is designed to hold rounds in the chamber when you remove your magazine, preventing the typical 'drop' of 3-4 BBs. It generally works well with most standard mid-cap magazines, though very tight-fitting or proprietary magazines may require a brief break-in period to ensure smooth feeding.

Yes, this chamber is engineered to be compatible with R-hop, Flat-hop, and standard hop configurations. The precision rotary dial allows for the fine-tuned adjustments necessary to get the most out of custom bucking setups.

The CNC Delrin locking C-clip is designed to eliminate the barrel wobble and twisting often found in stock plastic chambers. By locking the barrel securely in place, it ensures consistent alignment with the nozzle, which is critical for maintaining accuracy shot after shot.

Installation is straightforward if you are comfortable disassembling your upper receiver and barrel assembly. Because this unit is CNC-machined to tight tolerances, it fits snugly, so you should ensure your outer barrel is clean and free of debris before sliding the chamber into place.