BCA Level 1 Upgraded VFC Avalon Gladius AEG Hopup and Units it is resistant to atmospheric

it is resistant to atmospheric conditions (Military Specification MIL-V-173C)

well balanced and energy efficient

- Packing Included: 4 Pcs/Set

Magazine: 30 Rounds

What magazines and BBs should I use

BCA Level 1 Upgraded VFC Avalon Gladius AEG Hopup and Units it is resistant to atmosphericLevel 1 Upgrade Build PDI 6. 05mm SUS304 Stainless Steel Inner Barrel SHS Steel 14T 7 Hole Lightened Piston BCA CNC Aluminium Air Nozzle w O ring BCA CNC Aluminium Cylinder Head w Sorbo Guarder Tappet Plate with Enhanced Tappet Spring Deans Connector Avalon Gearbox Includes: Built in MOSFET, Li Po Ready! Balanced Torque Motor with Neodymium Magnets Ball Bearing Quick Change Spring Guide (requires gearbox removal from a receiver) This is a dependable,