Maxx Hopup M4A Pro

Specifications Brand: Maxx Model Construction: 6061 Aluminum Compatibility: For Most Tokyo Marui Spec M4/M16 Standard AEG Version 2 Gearboxes Color: Red Features Machined from a solid aircraft grade aluminum block with tight tolerances to provide better accuracy, consistency, and durability Precision rotary dial design for fine hop-up adjustments Re-engineered hop-up 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 Accepts nozzle length from 21.00mm 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 that is designed to hold the barrel tight without wobbling and twisting, 3 compression springs on top, at bottom and in center of housing to ensure the hop-up unit is exactly centered, straight, and air tight Compatible with any 11mm inner bore AEG gearbox or HPA engine nozzle outlets Specially designed wi