Prometheus Elite CNC Hop Up Unit for VFC M4 Series AEGs by Prometheus - Laylax Cinghie-Tracolle-Cinture-Belts-Lanyard-Sling Mount-Ring & Accessori Fine adjustment of hop-up pressure

Fine adjustment of hop-up pressure - 360° control wheel range

and James Bond fans alike

High-quality lens with thickness more than 2 times conventionally than replica

The Advanced Speed Trigger has multiple adjustment

Prometheus Elite CNC Hop Up Unit for VFC M4 Series AEGs by Prometheus - Laylax Cinghie-Tracolle-Cinture-Belts-Lanyard-Sling Mount-Ring & Accessori Fine adjustment of hop-up pressure417 series AEGs are not a drop in fit and might require some modification. Shaving off or removal of the hop up retention clip will allow this chamber to fit properly. *Please consult a reputable and reliable airsoft technician for assistance like we are :) Compatibility: VFC Avalon Series AEGs VFC Samurai Edge Series AEGs SIG AIR Proforce MCX AEGs SIG AIR Proforce MPX AEGs BCM Air MCMR AEGs VFC H&K 416 Series AEGs *VFC H&K 417 Series AEGs* Ultra high