E&L ELT 191 (QBZ 191) HPA/CO2 GBB Limited Edition Power Source: HPA/CO2Gas Tank Not @ Magazine CO2 Connection Inside M4 Stock TubeHPA Connection @ Pistol Grip E&L ELT 191 (QBZ 191) HPA / CO2 GBB Limited EditionSKU: ENL-GBBR-ELT191$595.00PriceOut of Stock