The M40A5 is a spring powered replica. For now there is no information about the velocity it can generate.
There will be two colour versions:
Black
Olive Drab
The magazine has a 35 BB capacity and is made from steel.
The rifle has ben tested by the manufacturer which can be a guaranty of its durability.
A very interesting thing about the M40A5 made by Tokyo Marui is the fact that it gives to its user the option to change the Stroke and Pull Weight of the trigger.
A short video about the M40A5 rifle.
Source:
Tokyo Marui