There's no definitive answer. In the United States alone, there are an estimated 200 million+ firearms and the BATF website indicates there are about 4.5 million sold each year. Each state in the U.S. keeps records differently and there is no national registration, so there's no real way to know. (copied and pasted from another article I answered)
Over 200 mil.
All of them. Texas does not license firearms. As is the case with MOST US states
There are no exact records, since there is no national registry of ordinary firearms. It is ESTIMATED that about 310 million firearms are privately owned in the US.
around 300,000
No one counted them, so there are no numbers.
Assuming you mean Firearms Retailers in the US- as of 10 Jan 2013, there are 58,725 businesses licensed to sell firearms to the general public. Many of them, such as chain stores, will have multiple locations.
Being an object with no life of it's own, firearms themselves have done nothing to us. However, PEOPLE have done many things- good and bad- with firearms. Also cars, computers, and baseball bats.
No, there isn't.
none. it is the person behind the gun who commits the crime. firearms alone cannot kill someone
Many firearms manufacturers are owned and operated within the US. Among the more prominent manufacturers are Colt, Kimber, Springfield Armory, Bushmaster, Browning, Winchester, Marlin, Mossberg, Remington, etc.
It depends on what you mean. There is no requirement to register firearms in the U.S.
If you mean from the United States, both the US and peru have laws regulating export of firearms from the US, and import of firearms into Peru.