Gateron Lunar Probe 45g

Quick Summary

The Gateron Lunar Probe 45g is a light factory-lubed linear built around a dual-rail housing, a POM stem, and a double-stage spring. It lands as one of the easier “buy and build” linears: smooth enough to skip a lube job, light enough to type on all day, and tuned with a slightly shortened travel that keeps the stroke feeling brisk. It’s a strong pick for anyone who wants a quiet, fatigue-free linear without the work of hand-tuning a batch.

Specs and Feel

This is a true linear: no bump, no click, just a clean glide from top to bottom. Actuation sits at 45g with a 50g bottom-out, so the weight curve stays gentle and predictable; there’s no sudden wall at the end of the press. Pre-travel is 1.80mm and total travel 3.60mm, both a touch shorter than the MX standard, which makes presses feel a little snappier and more immediate than a full 4.0mm switch. The POM stem riding in the dual-rail housing keeps stem wobble well controlled, and the factory lube does real work here: the stroke is smooth with only the faintest trace of background texture, and scratch is a non-issue at this price. The polycarbonate top and Nylon PA66 bottom lend a fuller, rounder acoustic signature rather than a thin clack.

Tuning

There’s little need to do anything. The Lunar Probe comes factory-lubed and feels finished stock, so a fresh hand lube buys you only a marginal improvement. Switch films are optional and mostly cosmetic given how tight the housing already is. Fit them only if you’re chasing the last bit of consistency in a high-end build.

Verdict

Buy it if you want a light, smooth, low-effort linear that performs above its cost. The Lunar Probe 45g rewards people who’d rather build than tune: it’s quiet, consistent, and comfortable straight from the bag, with a slightly faster travel that gaming and speed typists will appreciate. Skip it only if you prefer a heavier linear or a full 4.0mm travel. Otherwise it’s an easy recommendation.