Thanks for the suggestions fellas. It seems like the particular one ARB uses is pretty hard to come by, but at least there are other options. I definitely want a simple chuck that locks on. I just hook it up and count time or use the timer on my phone when airing up. No squatting or squeezing.
I heard back from Cruiser Outfitters today and they cannot get that specific one separately. They do have the angled one (ARB607) as seen here:
Buy ARB ARB607 Air Compressor Chuck and Accessories: Compressors - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
Ironically, this review of the Amazon listing from December '19 says:
Not as pictured
www.amazon.com
I received the straight chuck, not the angled one in the picture. Coincidentally, I wanted the straight one to replace one that was lost, but I couldn’t find it for sale anywhere. Turns out this is it.
Sounds like he's describing the one I'm seeking. But some of the options posted above would probably work just fine.