There is no one place that has what you want.
carbine answerThe value is around 500 to 700. Go to guns America website i think they have one on there.
Gun Broker, Guns America, Guns International
More information about DeVilbiss spray guns can be obtained from the official DeVilbiss spray guns website, There is a resource section located on their website which offers a wealth of information about DeVilbiss spray guns.
http://www.coltsmfg.com/
Their own website is the primary means of delivering applications and includes a career page with specific information regarding obtaining a job or career of value.
There are many retailers that sell "Airsoft" guns. Popular websites include the "Gun Broker" website, the "Air Splat" website, and the "Hobby Tron" website.
It is 0.0146
The Library
evike.com and airsoftgi.com
http://www.gunbroker.com/
Your best bet is finding a collectors website for the manufacture you intested in since they will probably know them best. If not you could try a place like: http://www.gunvaluesboard.com/
depends on the type of rifle / pistol