ARCTURUS TACTICAL Airsoft M4 M16 Series Polymer 30/130 Round Transparent Window High Speed Mid-Cap Airsoft Magazine

Features
Durable and light weight polymer construction
High tension steel spring ensures reliable feeding
Aggressive grip texture surface provides slip resistance and better handling when reloading
Windowed side panels show how many BBs are left
Switch between 30 or 130 rounds for more realism or casual gameplay