ETS mags wont crack or break, are resistant to heat, cold, UV and harsh chemicals and wont become brittle over time. Their mags come with enhanced features like non-tilt followers, creep-resistant feed lips and clear body allowing you to see count and ammo type, leaving nothing to chance.Features :Fits the H&K MP5, MP5K, HK94, SP89, SP5KWorks with ETSCAM-RIFLE speed loaderExtremely reliable feeding - Even with hollow pointsFar lighter than steel magazinesFits standard MP5 mag pouches and couplers30 round capacityCompatible with all MP5 style 9mm firearmsLifetime Warranty