product code:623
Introducing Prometheus “EG Barrel W” Wide-Expanded HOP window model, based on our EG barrel with the renewed Wide-Expanded HOP window for a variety of HOP nubs and tensioners.
Inner barrel bore width of 6.03mm with a tolerance of +/-0.01mm, made of stainless steel (SUS) for superior strength necessary to maintain accuracy without the need for coatings. The HOP window adopted in this model is a wide type similar to Prometheus KRYTAC-compatible EG barrel, making it suitable for setups involving R-HOP and other extended hop tuning techniques. Also compatible with other tuning setups, allowing for a broader range of customization options.
 
Compatibility: 
- Tokyo Marui NGRS Series*
- Tokyo Marui Standard AEGs 
- TM Spec Standard AEGs 
 
Dimensions 
- 300mm Length 
- 6.03mm Diameter 
 
Includes: 
- EG Barrel W (300mm) x1 
 
 
*This item is not compatible with Tokyo Marui NGRS MP5A5 and MP5SD6 series as well as Standard M14 AEG series 

