No because a gun cannot be changed by a normal sibling or adult
You can customize all the guns except the ones you pick up on missions.
You need a gunsmith
On battlefield three you can change about anything you want on your guns
I own this app on my iPod and unfortunately you can not customise your own guns
You don't.
No
If the owner of the guns is dead, you can not get them from the police not being the owner.
They work on, repair and modify guns and rifles
Yes you can modify your computer but that will require very high level of skill to modify your operating system. If you are using Linux then it is easier to modify the way your computer runs.
Open the Create Statements window, select your template and choose "customize".
Personalize is to design something with your personality and costumize is to modify something in the way you prefer
Yes, police officers typically carry firearms as part of their duty to maintain public safety and enforce the law.