Added all CAR4 mods to AMCAR,makes it more like M4 rifle

base stats:
firerate 600 + 
damage 34 - （mods will gain 5~7 damage）
total ammo 160 - 
spread 9 + （highest accuracy 60 +）

Changelog
0.2
-- Removed barrel

Notice
Other player not have this mod,they will see you only bring a barrel :paranoid:
Play the mod with your friend