*NEW* Maxx Model CNC Aluminum Hop-up Unit for M4 (M4A-PRO)
- Precisely machined to perform accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 standard AEG version 2 gear box
- Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability
- Precision rotary dial design for fine hopup adjustments
- Re-engineered the hopup levers and nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot
- Accepted the nozzle length from 21.00mm to 21.25mm
- Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs
- Equipped with a new CNC Delrin Locking C-Clip design to hold barrel tight without wobbling and twisting, 3 compression springs on top, at bottom and in center of housing to ensure the hopup unit is exactly centered, straight and air tight
- Compatible with any 11mm inner bore AEG Gearbox/HPA Engine nozzle outlets
- Specially designed with BB Latching System to prevent dropping BBs after removing the magazine, Manually opened to release BBs from inside hopup chamber by hand
