The Raptor is a very cool rocket. Old school in some ways, but it was also way ahead of it's time back in the day. Still unique.
It's billed as a "minimum diameter" 29mm rocket. But..........they actually use a motor mount tube. Basically the motor mount pretty much just fits inside the airframe. So the actual OD of the airframe is not entirely "minimum". However, what's cool about it is that that OD happens to be exactly the same as the OD of a Slimline retainer. So you can have a very slick threaded retainer on your "minimum diameter" rocket. Sweet.
Beyond that, they used thinwall tubing way ahead of most folks, and they also used an orange colored resin, so the tubes look pretty sweet unpainted. The molded nosecone uses the same resin so that looks pretty cool unpainted as well. Bear in mind that the nose cone and airframe are a matched pair....they really only fit each other (so you can't use any other aftermarket cones).
They ARE still in business as far as I know. The website hasn't been updated in something like a hundred and fifty seven years, but you can still buy rockets and bits from them. Check em' out, get something cool from them, and have fun building and flying it.
Here's my (partially kitbashed) Raptor........
ssix