The estimated total number of guns (both licit and illicit) held by civilians in the United States is 270,000,0001 to 310,000,0002
~ gunpolicy.org

Gullup: Gun in US homes

~ Gallup Inc.

50 years low support of Handgun ban

~ Support for stricter gun laws in general is lowest Gallup has measured by Jeffrey M. Jones, Gallup Inc.