- TOPASK50: Short space
- TOPAUN50: Universal MX
- TOPJAS50: Semi-grid
- TOPJCK50: Semi-standard
- TOPKLN50: Full-grid
- TOPMAU50: Universal Matias
- TOPMLO50: Alt short space
- MIDATM50: Middle piece with stabiliser and usb cut-out
- BOTATM50-MSH: Milled bottom
- BOTATM50: Plate bottom