Star 20rd Mid-Cap Magazine for MP7 / R4 Series Airsoft AEG (One)

"I just oredered three of these and they are awesome! The 20 rd cap is good forcing you to play smart.
Pros:
Light
easy to change
Light enough to just drop by hitting the relese

Cons: around the 10th bb it gets kinda difficult to load more bbs but thats it