"Real style delta ring"

What does it mean when a part (RIS, specifically) is "only compatible with real style Delta rings"? What makes a delta ring "real style"? I'm just asking for future references because all the rail systems out there are only for these real style Delta rings.

Also, I don't know if my gun has a real delta ring or not because it's a different front end since it used to be the JG Dragon. I think it's a G&P front end but I'm not sure. The Delta ring has a little gear type thing that catches the handguard, is that real style and will it work with this rail system?

You see the ring in the picture between the RIS unit and the Upper receiver. Thats a delta ring. For a better picture look at image 3 of your link.

and what makes it a real delta ring is that it can be pushed back to the upper receiver to let the heat shield or RIS be taken out and replaced and what not.

Yeah I know what a delta ring is, but I don't know what they mean by "real style"... Is there any other style of delta rings that would not be compatible with an RIS?

I think he's implying that a delta ring that CANNOT be pushed back will not be compatible.

Oh, right. I should have read that. I'm sick, not very aware of things

That's odd though, I haven't seen a gun with a delta ring that can't be pulled back. Oh well, thanks for your help though

Real style mean it has a Real Steel delta ring. (like a G&P) others (like JG) don't. Madbull makes and adaptor......

Okay.. but what is the difference between a JG delta ring and a G&P delta ring?

Threads. They are diffrent size shape course/fine etc. If you try threading a La Rue RIS with a JG delta ring, you would be out about $300.....

So... will the UTG RIS unit fit?

Here's a pic of the delta ring since I do not know what brand the front end assembly is...

I have no idea. Ive picked up said knowledge from guys at ASR....

Alright well I talked to the guy I got it from, he said it's a G&G front end. That makes selection a lot easier... since most RIS units are compatible for G&Gs

I may not know the difference between a "real delta ring" and any other delta ring is, but at least I know what to buy