Guns are tools and as such. do not provide us with anything by themselves. For example, asking "What do hammers provide for us" reveals the logical flaw in the question. The legitimate uses for guns by individual citizens are self defense, hunting, and target shooting. Gun ownership is guaranteed by by the Second Amendment to the Constitution.
The United States gave them machine guns, shelter, planes, tanks, food, and water.
Yes. About one third of us that are adults do own guns. Legally.
18 for long guns 21 for hand guns
Despite belief to the contrary, in MOST of the US, there is no requirement to register ordinary guns.
Trade
Yes
Yes.
No one record. Estimates are about 310 million guns.
Like most of the US, there is no registration of guns in Texas.
They use a lot of guns given them by the US BATF.
1. Battleship USS New Jersey, 16" guns 2. US Navy heavy cruisers armed with 8" guns 3. US Navy light cruisers armed with 6" guns 4. US Navy destroyers armed with 5" guns 5. US Artillery: 175mm self propelled guns 6. US Artillery: 155mm self propelled guns 7. US Artillery: M56 SPAT 90mm self propelled anti-tank gun 8. US Artillery: M42 Duster; twin 40mm pom-pom guns 9. US Artillery: 8" inch guns 10. US Artillery: split trail 105mm and 155mm field guns (towed pieces) 11. USMC: M50 Ontos (six 106mm recoilless rifles)
Not in the US, but registry is required for ownership or possession of certain types of guns.