Fits a bit loose on LM group. Mine came heavily scratched up, but the eightounce team was quick to sort this issue out. Not sure if I'd recommend this product.

I was on the fence buying this for my Flair 58+ and let me tell you, what a nice, heavy and well made portafilter, the beauty of laying this down flat on a surface and adding convinience to my workflow is a must, no more (portafilters holders)

I was already using Weber's shower screen and basket with great success so this portafilter was a no brainer.

I use it with a first generation Flair 58 espresso maker and it works perfectly.

I was a bit unsure of the rubber handle but it is very firm (a bit of give when a finger nail is pressed into it) and is very aesthetically pleasing when attached to the Flair 58.

The greater weight takes some getting used to but the flat bottom means I don't have to use my portafilter holder when making the magic of espresso.

I mainly bought this to fit the unibasket as I was having trouble fitting it to other bottomless portafilters.

Pros:
- portafilter stays in my acaia scale much easier (no balancing needed)
- easier to tamp at any surface (no need for an edge of a countertop)

Con:
- wood handle not to same quality as those from wiedemann or other after market makers

While the Buck works like any other portafilter, the design and quality outshine most. There is a heft to it that feels satisfying every time you pick it up. The teak handle is gorgeous. Its flat base does away with the need for a tamping cradle or counter edge.