It’s composite, I unwrapped mine and hit 100 44’s and classic ms off a tee in my garage today and it had a lot of loud cracks sounds, doesn’t sound like a steel, but I will say your spot on about it feeling like a steel, endload is massive, most I ever swung, I regripped it to verify it has a composite handle, btw the worst grip ever to remove, the triple wall barrel does have me intrigued, maybe why such a huge endload, I’m sure it doesn’t have any gap tech like an asa since it is designed for 44 senior balls, I want to cut one open to see inside lol, the ss felt small, out towards the end in the “to” area, that’s where I got the most crack sounds, every well else it did have a different sound, softish pillowy sound from time to time, probably just the balls or lack of sweet spot, I did hit a couple of 52’s and got that same kind of sound even on the sweet spot, it was hard for me to swing, I had to adjust my swing because of the endload, it’s a log and I will give it a ton of bp hits to see if it opens up more, it very much reminds me of bats 10 years ago where you have to put in the work to make them game ready, I’m used to these newer asa bats hot out of the wrapper,