Given the customizable nature of the Glorious Modular Mechanical Keyboard and because my review sample was pre-built with a single switch type, the company sent over their switch sample pack, which is available as a separate purchase for $9.99. It is ideally to be used before purchasing the GMMK in case one is confused over which switches to use, and also whether O-rings might be handy. The packaging for the sample pack is very similar to that of the keyboard itself, albeit much smaller, of course. We see more black and white here, with the company and product name on the front and a list of everything included on the back. Single flaps on the side open to reveal a thick foam piece with cutouts for the individual switches and other items underneath. A note here tells us that the company also sells wooden wrist rests under their brand now. This does seem weirdly out of place for their motto, but I can't blame them for trying. We also get two Glorious PC Gaming Race stickers, and a plastic pouch contains the O-ring samples.
We get five 2.5 mm thick and five 1.5 m thick 40A silicone O-rings. The relatively low hardness ensures a softer keystroke even with the O-rings installed. Both types are translucent to retain the backlighting effect on the keyboard while cutting down the actuation distance of the key and dampening downstroke noise. So, a 2.5 mm O-ring would thus cut the actuation distance down significantly should you want to create your own speed switches of sorts. If you end up liking these, the company lists them for sale separately in different hardness and thickness indices.
More relevant for those looking to customize the GMMK prior to purchase are the 14 spare switches that come in the sample pack. These include six Gateron switches (Black, Blue, Brown, Clear, Green, Red) and eight Kailh switches (Box Black, Box Brown, Box Red, Box White, Speed Bronze, Speed Copper, Speed Silver, Pro Purple). The company has a guide that goes over these switches as well, and they make them available for purchase separately, as with the O-rings. This is not to say that the GMMK is only compatible with these switches, but these just happen to be those the company has on offer itself. All Cherry MX switches have been confirmed to work just fine with the GMMK, for example, as will many other options to varying degrees of success.