Tokyo Marui EVOLT M4A1 Carbine AEG
 
By dividing the gearbox into the "cylinder assembly" and "gearbox," the upper and lower receivers are completely separated. This allows for realistic takedowns, even though it is an electric gun.
*This product is a "shockless model" that has no recoil shock.
The M-SYSTEM Type II, which is an optimized version of the M-SYSTEM used in the next-generation electric guns (MP5 series) for the EVOLT M4 series, is equipped.
The MCU (microcontroller unit) comprehensively monitors the FET, battery, and motor, controlling operation and detecting abnormalities.
The M-SYSTEM TYPE 2 chip, an evolution from the Next Generation MP5 series that enables reliability, realism, and exceptional performance has been refined to the maximum. The new V7.0 chip includes 6 sensors that not only ensure perfect rifle performance but also can detect potential malfunctions and stop operation by itself if necessary.
The EVOLT series introduces a dedicated gearbox that split into two distinct parts, with the cylinder fully integrated with the upper receiver.
14.5-inch outer barrel can be replaced with the included 11.5-inch barrel extension.
Reinforced resin grip. By achieving both thinness and durability, the grip perfectly mimicks the actual rifle.
Magazine features a steel-pressed outer shell and holds 81 rounds
"One-by-One Loading System" that closes a shutter inside the magazine every time a BB is sent from the magazine to the chamber, preventing the next BB from being sent to chamber until after firing.
M-SYSTEM Type II
Auto-Stop System
Fully automatic / semi-automatic
Receiver cover included
Extra 11.5 outer barrel included
Non-recoil action for higher accuracy
Proprietary MS Li-Po battery [stick type] - not compatible with other brands of batteries
Option Part : Tokyo Marui EVOLT M4 AEG 81rds Magazine
Length: [14.5 inch] 777 mm - 858 mm.  [11.5 inch] 660 mm - 742 mm
Barrel length: 229 mm
Magazine capacity: 81 rounds
Power source: Proprietary MS Li-Po battery (stick type)