This product is designed to be installed inside the CGS M4 MWS gas magazine. You only need to bring one CYMA CGS MWS magazine for outdoor wargames, but you can also carry multiple of these BB tubes pre-loaded with BB bullets. There's no need to carry over ten heavy magazines outdoors. During wargames, you simply need to replace the BB tube inside the magazine.

Key Feature

• Aluminum Construction Airsoft QD BB Tube
• 30 Rounds Loading Capacity
• Design For Work With The CYMA (CGS) M4 Series MWS Airsoft Gas Magazine