Most of these are either machine pistols or disguised firearms, both of which are already severely restricted in the US. It seems likely to me that restrictions on firearms in those countries are the reason people are building guns instead of buying them.
Some of these guns came from Brazil and Ecuador, which have significantly higher homicide rates and tighter restrictions on firearms than the United States. This suggests to me that some other factor is likely responsible for the high homicide rates.
http://improguns.blogspot.co.uk/
Most of these are either machine pistols or disguised firearms, both of which are already severely restricted in the US. It seems likely to me that restrictions on firearms in those countries are the reason people are building guns instead of buying them.
Some of these guns came from Brazil and Ecuador, which have significantly higher homicide rates and tighter restrictions on firearms than the United States. This suggests to me that some other factor is likely responsible for the high homicide rates.