AOLS Refillable CO2 & green gas Cartridge 12 gram capacity for Airsoft

Functions:
Made of stainless steel and brass material
Max pressure resistance: 6MPA
Reusable cartridge can be refilled with either green gas or CO2
Including 1pc refillable co2 cartridge and 1pc fixing nut of magazine
Presented by Airsoft Industry Co.

Specification:
Material: Stainless & Brass
capacity: 12 gram
Gas type: CO2 & Green Gas
Weight: 45g