Stanag magazine developed exclusively for the M4 series of the electric gun Evolt/Evolt RS, featuring a magazine capacity of 81 rounds and a steel press on the magazine outer frame.

The "Inner Elevation System," which applies upward tension to the inner part of the magazine, presses the magazine catch against the feed port on the main unit, preventing feeding failures. 
 
NOTE: Conventional magazines for M4/M16 cannot be used with the electric gun Evolt 'M4A1 Carbine'.
 
Utilising the "One-by-One Loading System," where the magazine's shutter closes every time a BB is fired from the magazine to the chamber. The structure prevents the next BB from being fed into the gun body until after firing.