Exactly that, It's a standard 2015 swingarm adapted by Harris. This one was reportedly used by Lee Hardy Racing in BSB.
The caliper hanger and end plates are all attached to the swingarm so stay in place when the wheel is removed.
They're also machined to support the wheel as its dropped in from above, so you can just push the spindle through without the need to support anything.
All good in theory but this was setup for oz superbike wheels and no tc sensor. I need to sort spacers and and a different caliper bracket (it's in two pieces, so only the lower bit) before i can fit it.