KWA M4 Style 460 Round BB Speedloader Air Nozzles This is your heavy upgrade

This is your heavy upgrade spring strength for custom  upgrades

4v 1300mAh PEQ Brick Lipo Battery

This is for the higher-end metal pistol (not the cheap entry level version)

FPS is 345 w/

The advantage of these magazines is the simple fact that they are able to hold a great many BBs

KWA M4 Style 460 Round BB Speedloader Air Nozzles This is your heavy upgradeThe KWA M4 Style 460 Round BB Airsoft Speedloader. Similar to a M4 magazine size and shape to fit inside mag pouches and vests. Holds 460 rounds. Perfect for loading midcap mags and pistol gas mags on the battlefield quickly. Semi clear plastic polymer and smooth operation for loading mags. Has built in Metal loading tip for extra long term durability.