As of today I've bought 3 rifles and 4 pistols from Gunbroker without any problems. All new, however if you are buying used be careful. I was going to buy another 1911 then I noticed the left hand safety was missing. When I callled the seller he tried to minimize the fact that he didn't disclose it.
With used stuff it's definately buyer beware.
"Socialized Medicine is the Keystone to the Arch of the Socialist State.” -Vladimir Lenin
"I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them." - Thomas Jefferson (An early warning to Obama care)