From PTS Syndicate we have the Enhanced Polymer Magazine in Black for Tokyo Marui Recoil Shock (NGRS) M4 and SCAR AEG's.
The PTS Enhanced Polymer Magazine, or EPM for short, is a new type of Polymer Magazine for airsoft rifles. The EPM is a truly unique magazine, inside and out. Externally it features a polymer shell, with recessed panels for better grip, and unique magazine well guides that reduce snagging when the magazine is drawn from and reinserted into pouches. The front of the baseplate features a dot matrix which allows the user to mark the magazine with alphanumeric characters or pictograms for identification
Specification:
Color - Black / Dark Earth
Material - Dupont Zytel High Performance Reinforced Polymer
Dimension - 185 x 85 x 30 approx. (without packaging)
weight - 185g approx. (without packaging)
Compatibility - Tokyo Marui Recoil Shock M4/SCAR/416D
Capacity - 30/120 Rounds