GoldenBall x Maxx Model CNC Aluminum Airsoft Hop-Up Chamber Unit for M4A Pro - High Precision Upgrade for Competitive Airsoft Matches & Tactical Training

Features

Machined from a solid aircraft grade aluminum block with tight tolerances to provide better accuracy, consistency, and durability

Re-engineered hop-up levers and nubs to work best with R-hop, flat-hop, and standard-hop

Accepts nozzle length from 21.00mm. Compatible with any 11mm inner bore gearbox or HPA engine nozzle outlets. Precision rotary dial design for fine hop-up adjustments

Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS

NOT a part or component. NOT for real weapons. No parts are designed for real weapons. This is only for Airsoft Use.