Maxx Model CNC aluminum hop-up chamber, M4A – PRO is a completely redesigned and improved version compared to the traditional Maxx Model M4 CNC hop-up unit. The M4A - PRO model is designed and manufactured to work precisely and with extreme accuracy with Tokyo Marui-style M4/M16 AEGs (including G&G, KRYTAC, etc., excluding KWA models).
The special feature of the new Maxx Model M4A - PRO is the alignment insert at the nozzle entry point, which ensures unprecedented precision in aligning the barrel, nozzle, and hop-up unit.
The hop-up adjustment is implemented with a rotary-style mechanism, and its strength is adjusted using a large numbered adjustment ring. The rotary-style hop-up adjustment allows for extremely precise and stable hop-up tuning. The hop-up unit comes with different pressure arms, making it possible to optimize the unit for use with standard hop-up rubbers or R-hop patches.
The sides of the hop-up unit feature removable brass side wings that slide smoothly into the grooves on the outer barrel.
The Maxx Model M4A hop-up chamber requires a 21.00mm - 21.25mm nozzle to function. However, this guideline from Maxx Model may not always be accurate.
