This video shows Red of Barbarossa Tactical Shop and customizer Evilzek discussing Gas Blowback rifles from VFC, Cyma, and G&G. They explain that GBB replicas are often designed for higher power than Italian law allows (1 joule), meaning they need modifications like a proper hop-up bucking to achieve better performance locally. For VFC rifles, common upgrades include anti-rotation pins, a better hop-up unit, barrel, and an optimized buffer spring to enhance ballistics and consistency.

They also compare the VFC platform to the Noveske/Double Eagle MWS clone, noting that while VFC offers a more realistic feel, the Double Eagle is a better platform for pure in-game performance, requiring similar internal tweaks like a stronger loading nozzle. Lastly, they review the mechanically simple G&G Lever action, which is easy to modify with standard AEG hop-up parts, but users are cautioned against using high-pressure gas.