Thought the forum needed a thread on this, as it gets brought up surprisingly often. Found this excellent article by Richard S. Ehrlich in CNN, so thought it would start us off. Worth reading as it's about foreign gun ownership in Thailand, and goes into surprising detail.
Most Thais do not own a gun. Those who do, usually buy "for personal protection, and secondly for their collection. A lot of Thai people like guns," says Polpatr Tanomsup of the Firearms Association of Thailand.
If you have an itchy trigger finger while visiting Thailand it may be difficult to purchase a gun, but wealthy foreigners and Thais who live here can now enjoy their weapon of choice thanks to the recent lifting of a ban imposed in Bangkok last year.
Tourists can, however, buy custom-made leather holsters and other accessories at the estimated 80 weapons stores along Burapha Road, just east of the Sala Chalerm Krung Royal Theatre, where the vast majority of Bangkok's gun shops are located.
Most of the shops have been in business for more than 40 years and welcome walk-in customers, but may discourage photographs of their deadly arsenals.
Shotguns such as these are popular in Thailand for personal protection.
Expats and other foreigners working in Thailand can buy guns, but import taxes of around 30 percent -- plus hefty retail profits -- discourage most foreigners.
"Not many foreigners buy guns in Thailand because the price is really expensive, compared to the United States and other countries, because of our importing quota and taxes," says the Firearms Association of Thailand's director of international relations, Polpatr Tanomsup.
A lot more here: http://www.cnngo.com/bangkok/shop/bangkok-gun-shops-why-you-dont-want-buy-glock-thailand-009893