High capacity magazines for electric guns are a must for any serious airsofter. The high-cap magazines look exactly the same as the standard magazines but can hold up to 8 times the amount of ammo. • SDMSDG5L AEG metal magazines are compatible with : • – Echo1 SG Vector Arms 1 RIS Full Stock • – Echo1 Vector Arms 2 RIS RIS Adjustable Stock • – Echo1 Sub Gun 1 AEG Full Stock • – Echo 1 Sub Gun 2 AEG Retractable Stock • – Echo1 Sub Gun 3 AEG Folding Stock • – Aftermath Broxa Evolution AEG • – Aftermath Lycaon AEG