Its called ebay.
I'm pretty sure eBay won't allow guns. You can sell guns on gunbroker.com
there is a site called brick arms where they sell ammo, guns, mini figs, and more
sure do in maritimes The Gun Dealer In NB. they have a web site and ship anywhere
On the mother ship zeta expansion pack, if you don't have that you can't get them, besides one alien blaster with limited ammo at a UFO crash site
This site has mucho accessories and interesting buys like helmet cams, bdus, pouches. http://www.6mmbb.com
If you have something that is used, then the first thing you should do is post it on a site such as Craigslist. This site allows people, such as yourself, to buy/sell an item locally. A link is posted below.
You can post and sell your car in different classified ads look for the website that is free to ads like this website http://www.carsonlinefree.com/. Try to look other site.
There is a web site called Old West Scroungers. They sell antique ammo and other items. If they do not have it, they are likely to help put you in the right direction. There web site is at the related link below.
Gunbroker is an AUCTION site. Many guns will begin with a penny bid, but they are sold for the HIGH bid. That penny does not include shipping costs, or the fee that you will pay the gun dealer it will be shipped to to transfer the gun to you. Guns that start at a penny RARELY sell for a penny.
top classified site in USA is: Mustdail It allow you to post Free classified site in USA for products & services. Mustdial is a place where you can simply register your site for automotive jobs , real estate, buy or sell etc
Tippmann
does not work- there are several that claim to work- they don't.
The best places to post your truck would be on a business site, for those who are in the construction industry. This will assure you have a good target audience.