Happy Burger provides a detailed breakdown of the VFC M18 GBB after its unboxing. This SIG AIR-authorized replica boasts a highly realistic SIG P320 structure, accommodating real holsters. It features an aluminum slide with an alloy metal outer barrel and a nylon lower frame. The integrated slotted reflex sight mount slide design (adapter not included) offers versatility. The new patented Concealment "GuideHOP" Hop-Up Quick Adjusting Design enhances performance. A new aluminum alloy, black-coated inner barrel improves aesthetics. Ambidextrous steel slide stop levers and changeable magazine releases cater to different preferences. The realistic modularization hammer group, with steel hammer and fire control parts, adds authenticity. The replica is compatible with original Gas and CO2 power magazines.