250 rounds Fast Feed Mid Cap Magazine 

Features
◆ Ergonomically designed for comfort and ease of operation.
◆ Durable, Impact-Resistance Polymer construction.
◆ Offers a generous 250-round BB capacity.
◆ High-Tension Spring ensures consistent and reliable feeding.
◆ Features a wide channel design for effortless BB loading.
◆ Available in multiple colors
◆ Compatible with most M4/M16-based airsoft replicas and AEG/HPA system

Color : 
A6- Black Cover + Blue top