GBU Custom Series 180% Hi-Capa Nozzle Spring model-m92 These are the GBU Adjustable

These are the GBU Adjustable HPA/ Mosfet compatible triggers

Metal 14mm Reverse Threaded End

With a full metal construction and the most advanced gearbox configuration to date

Fits universal V2 type blasters

Realistic Bolt Assist Button

GBU Custom Series 180% Hi-Capa Nozzle Spring model-m92 These are the GBU AdjustableNP1 Nozzle Spring by GBU was made by high quality spring steel. Its special design is able to supply an addition tension during cycling and enhance the durability. It can make sure the nozzle movement stable and workable. It provide 180% power during cycling. Compatability WETECH AW Custom Both 1911 & Hi Capa Platforms Golden Eagle Double Bell All Hi Capa Brands