Maxx Model CNC Aluminum Hop-Up Chamber for M4/M16 Series Airsoft AEG Rifles Variants:M4i Pro ICS these BBs are designed for

these BBs are designed for all FPS ranges

Knurled machined detailing on bonnet for an enhanced look

and Fusion engine you’ll need an fcu

In a quest to find the perfect rifle inner barrel for our prebuilds

Built with top-tier internal and external components throughout

Maxx Model CNC Aluminum Hop-Up Chamber for M4/M16 Series Airsoft AEG Rifles Variants:M4i Pro ICS these BBs are designed forSpecifications Brand: Maxx Model Construction: 6061 Aluminum Compatibility: For Most Tokyo Marui Spec M4 M16 Standard AEG Version 2 Gearboxes 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