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Choose a GMK keycaps set by its series, exact edition, and kit contents. Start with CYL WoB for white-on-black, Olivia Nº3 for its light or Dark Base APL options, or the merchant-listed Red Samurai 113-key 1800 kit as a candidate requiring a layout check.
For buyers comparing GMK sets, the first material distinction is straightforward: GMK identifies CYL as double-shot ABS and MTNU as PBT. Genuine GMK PBT exists, but a PBT listing with “GMK” in its name still needs its own manufacturer verification. GMK’s series information establishes the series distinction.
Quick takeaways: Identify the product before comparing materials, choose a base kit from its diagram, and add only the extensions your keyboard needs.
Research basis: Official and retailer search excerpts captured October 15, 2026. This guide compares published specifications; it does not report hands-on testing.
On this page
- Series and materials
- Black CYL WoB sets
- Olivia editions and accessories
- The Red Samurai 113-key kit
- Keyboard compatibility worksheet
- Offer checks
- Frequently asked questions
Match the GMK series to the material
A useful buying record identifies the manufacturer, series, design edition, and selected kit separately. Material belongs to that exact product record. GMK’s official series information distinguishes double-shot ABS CYL from PBT MTNU, so an ABS-only definition of GMK would exclude a genuine product line. Source: GMK. For the PBT series, continue with the MTNU profile and kit guide.
The official MTNU 800 OS2.0 properties provide a concrete PBT example: MTNU shape, double-shot injection molding, MX-cross mounting, and Base, International, ModuleA.2, and ModuleB options. That makes it a starting point if genuine GMK PBT is your requirement. Its specifications do not establish the material or kit contents of another listing.
Use this comparison to decide which product to investigate next:
| Exact product or listing | Supported construction | Selection question |
|---|---|---|
| GMK CYL WoB | CYL, 1.5 mm double-shot ABS | Which base and extensions cover your keyboard? |
| GMK CYL Olivia Nº3 | Merchant specifies 1.5 mm double-shot ABS; Dark Base APL sublegends use UV printing | Which colorway and legend treatment do you want? |
| GMK MTNU 800 OS2.0 | MTNU, double-shot PBT | Is this the series and exact kit you need? |
| Drop + RedSuns GMK Red Samurai, 113-key 1800 listing | Merchant asserts 1.5 mm double-shot ABS | Can the seller supply its exact kit diagram? |
| Nouvolo Red Samurai reproduction | Listing specifies PBT dye-sub and describes a reproduction | Does the listing actually establish GMK manufacture? |
Nouvolo’s reproduction disclosure explains why material and manufacturer must be checked together. Its PBT and Cherry-profile labels describe that listing. They cannot be transferred to the merchant-listed GMK Red Samurai kit, and the shared design name does not authenticate GMK production. Source: Nouvolo.
GMK black keycaps: compare CYL WoB kits
For white legends on black keycaps, investigate the exact GMK CYL WoB product. Its official properties identify CYL shape, ABS, double-shot injection molding, and MX-cross mounting. The listed base color code is CR and the legend code is WS1; the CYL FAQ specifies 1.5 mm thickness. Source: GMK CYL WoB. The black-and-white keycap arrangement guide helps plan the case-and-cap combination before choosing accents.
Record the legend direction as white-on-black when comparing offers. A black-on-white listing or a different series needs its own product check; similar naming is insufficient to carry over these specifications.
The official WoB listing provides several distinct kit choices:
| WoB kit | Listed contents |
|---|---|
| Grand Base Set | 156 keycaps |
| Fullsize Base Set | 135 keycaps |
| Exotic Base Set | 110 keycaps |
| TKL Base Set | 110 keycaps |
| 70% Base Set | 89 keycaps |
| Numpad | 25 keycaps |
Counts are from the official WoB scope of supply. They identify kit quantities, not guaranteed keyboard coverage.
Notice that Exotic Base and TKL Base have the same count. That alone gives you no reason to treat their contents as interchangeable. Compare the selected diagrams and identify the keys your board actually requires.
GMK’s WoB FAQ recommends choosing the smallest base that covers the keyboard, then adding extension or language kits as needed. Its available-options list includes language kits, Icon Mods, Row5 Kit, and Numpad, among others. Use those options to solve a specific missing-key requirement rather than adding kits simply because they share the WoB name. Source: GMK WoB kit guidance.
Olivia: check the edition and accessories
For GMK Olivia keycaps, retain Nº3 in your search and order record. Oblotzky Industries describes this as the third round, with an alternative Dark Base carrying APL sublegends and an international kit for the light colorway. That international-kit description is specifically tied to the light version. Source: Oblotzky Industries.
The merchant attributes the design to Olivia and manufacture in Germany to GMK electronic design GmbH. Its specifications list Cherry profile with the sequence 1-1-2-3-4-4, MX-style switch support, and 1.5 mm double-shot ABS. It separately identifies UV printing for the Dark Base APL sublegends. Source: Olivia Nº3 specifications.
That distinction matters if you are choosing Olivia for its legends. Keep the double-shot ABS specification and the UV-printed APL treatment separate in your comparison. Describing every mark on the Dark Base as double-shot would erase an explicit product detail.
The same merchant excerpt attributes the metal novelty keycaps to HIBI. It lists an Escape option at row 1, 1u, or an Enter option at row 3, 2.25u. Track those as accessory choices with their own manufacturer and dimensions; the passage does not establish that they are included in a GMK base kit. Source: HIBI & Olivia specifications.
Before selecting an Olivia offer, answer three questions: Is it Nº3? Is the selected option the desired light or Dark Base? Does the order contain the base, any required international kit, and any accessory you intend to purchase? Save the selected variant name alongside its diagram so a product-family image does not become your only record.
Red Samurai: identify the exact kit
The Red Samurai option supported here is the merchant-listed Drop + RedSuns GMK Red Samurai, 1800-layout 113-key kit. Ubuy’s excerpt asserts Cherry MX and clone compatibility and 1.5 mm double-shot ABS. Treat those as specifications attributed to that exact merchant listing. Source: Ubuy’s 113-key listing.
The “1800” label and 113-key count identify the kit to investigate. They do not provide an exact row-and-width inventory or prove that an arbitrary 1800 keyboard is covered. Request the selected kit’s diagram and compare it with your board before deciding.
Keep this investigation separate from the PBT dye-sub reproduction described by Nouvolo. The two listings make different construction statements, and Nouvolo expressly describes its product as a reproduction inspired by the original design. A matching name is insufficient to combine their specifications or approve one as a compatible substitute.
If a seller cannot identify the selected kit beyond “Red Samurai,” leave the purchase undecided. Ask for the manufacturer attribution, exact variant, and contents diagram rather than filling the gaps from another edition.
Check a GMK keycaps set against your keyboard
GMK supports the MX-cross mount and says compatibility depends on keyboard layout, bottom-row size, and required key sizes. The mount is one part of the decision. Use the following worksheet to turn that warning into an order check. Source: GMK compatibility guidance.
| Check | Record from your keyboard | Confirm in the selected kit |
|---|---|---|
| Mount | Manufacturer’s keycap-mount specification | Explicit support for that interface |
| Layout | Exact model and layout diagram | Every required key position |
| Bottom row | Spacebar and neighboring key sizes | Matching supplied sizes |
| Other key sizes | Required widths throughout the board | Matching caps in the diagram |
| Rows | Required row positions | Appropriate row assignments where specified |
| Legends | Language and preferred markings | Correct base and any necessary language kit |
Work through it in this order:
- Identify the keyboard precisely. Use its model and layout documentation rather than a broad size label alone.
- Open the exact selected kit diagram. Keep the edition and variant name visible while comparing.
- Match the bottom row first. Record each required size, then locate its counterpart in the kit.
- Check the remaining positions and rows. A sufficient total count does not document the required assortment.
- List any unresolved keys. Add an extension only when its diagram supplies the missing requirement.
For example, suppose you are considering WoB TKL Base because your keyboard is described as tenkeyless. The kit name makes it worth inspecting. Complete the bottom-row and key-size comparison before treating it as a fit; move to another base or extension only if its diagram resolves a documented gap. This follows GMK’s smallest-covering-base guidance.
For an optical, magnetic, or low-profile keyboard, obtain explicit confirmation for the exact keyboard and keycap combination. The captured MX-cross statements do not establish fit across those categories.
Verify the offer before ordering
After identifying a suitable kit, check the actual offer. Use the linked official pages as starting points for GMK series and WoB or MTNU product identification; use the merchant pages to investigate the exact Olivia and Red Samurai variants described here.
Before checkout, confirm:
- The seller and selected edition match your order record.
- The offer states whether it is ready to ship, a preorder, or a group buy.
- The order includes the intended base and any necessary extensions or accessories.
- The final total and shipping destination are correct.
- Cancellation and return terms are available for that offer.
- A contact route explains how to report missing or incorrect keycaps and ask about replacements.
Current US pricing, inventory, delivery, and return terms have not been verified for these selections. Resolve those commercial details on the selected offer before paying, and retain its kit diagram and order confirmation.
Frequently asked questions
Are genuine GMK keycaps available in PBT?
Yes. GMK identifies PBT with its MTNU series, and the official MTNU 800 OS2.0 properties specify double-shot PBT. That establishes a genuine GMK PBT example. It does not authenticate an unrelated PBT product because its title includes GMK. Source: GMK MTNU 800 OS2.0.
Are all Olivia Nº3 legends double-shot?
Oblotzky specifies double-shot ABS for the GMK caps and separately specifies UV printing for APL sublegends on Dark Base. Preserve both details when comparing versions. The merchant also identifies an international kit for the light colorway, so confirm the chosen combination. Source: Olivia Nº3.
Does the Red Samurai 113-key kit fit every 1800 keyboard?
The merchant excerpt does not establish that. It identifies a 113-key 1800 kit and asserts Cherry MX and clone compatibility, but supplies no usable row-and-width diagram here. Compare the exact kit diagram with your keyboard’s requirements before ordering. Source: the merchant listing.
Choose your next step
Choose the GMK keycaps set that satisfies your material, edition, and layout requirements together. Use WoB’s named bases to investigate black sets, preserve Olivia Nº3’s colorway and accessory distinctions, and verify the exact Red Samurai kit before relying on its layout label. If PBT is essential, begin with the documented MTNU option. Open the selected product’s kit diagram and complete the compatibility worksheet before placing an order.
