what do you mean parts? Internal or External?
M4a1-M16a4-M16SPR-MK12
External
Flash Hider
Outerbarrel
HandGuard
Delta Colar Ring
Lower and Upper Receiver
Carry Handle
Stock
Internal
Inner Brass Barrel
HopUp system
Hop Up Rubber
Gearbox
-Piston Body
-Cylinder Hear
-Cylinder
-Airseal Nozzle
-Gears
-Bevel,Pinion,Spur,Sector Gears
-Shims
-Switch Assembly
-Motor
-Spring
-Spring Guide
An Airsoft gun
A used or broken gun that the company or maker has replaced any of the worn or broken parts. It should be cheaper but just as good as a normal airsoft gun
m4 there are spare parts
A pump airsoft gun is a gun that has to be pumped every time before shooting. Ex. Airsoft shotgun
No
No
It is an airsoft gun based of the PPSH-41 gun
The more powerful the batter just means the longer your gun will last before it has to be recharged. 'Fox Airsoft Store' offers some gun upgrades, these will improve your gun. Also, a gun's fps is already pre-determined by what parts are installed, upgrades will improve the gun but stronger batteries will only extend the gun's life before it needs to be charged.
You never need a license to have an Airsoft gun.
most airsoft guns use 20 amp fuses, you can get them at just about any auto parts store or online.
No
NO