Is the conversion legal? If you have a class 3 license; then maybe (check with local,state, and federal laws) -- Otherwise, the answer is a resounding NO!

Are there permanent changes to my gun? No, this conversion replaces parts  on the back of the gun.  I don't believe it requires any other changes.   The diagrams show other parts for references, I think.

Are "the plans" actual schematics? No. They are the patent information along with drawings and description of how to do it.

Are the plans legal? Yes; you can own the plans as long as you don't manufacture the parts.

What Glocks will it fit? Should fit just about any of them.

Can it do "Select Fire"? That's what it is. "SemiAuto" or "FullAuto"

Have I done it? NO.  I don't plan to either, I was just curious.  That's why I didn't buy the actual schematics.   There are places you can get this information.

How can you post this information?  If the USPTO can, so can I.

Is it like other systems? I looked at www.fullautoglock.com and wanted to know HOW they did it; I believe this patent to be similar to what they are doing.  You should check out there site; and definitely there video! (AVI format)  Notice that the "select fire" switch is similar to the documents I point to. As of 1 Nov 00 this link seems to be invalid.

Are these your plans? No; I just found it from the US Patent office.

Can I download it? I have a zip file of a pdf file I found on the web.  I do not remember WHERE I found it; I'm sorry. 

I want it direct from the source! I don't blame you.   I can be a whack job trying to make you damage your gun.  Click here to go to the US Patent & Trade Mark office site to see the plans; be sure to click IMAGES at the bottom of the page!  But just because there's a patent on it doesn't mean it won't break your gun!  Here's the file as downloaded from the USPO. (required Adobe Acrobat)

"I Converted my gun!" Under no circumstances do I want to know this information!!!! I claim no liability for your stupidity if you undertake this illegal action to your safety; your pistols well being; or how long you've been in jail because of it.  It's only knowledge; what you do with that is your business.