BSUN Dragon

Quick Summary

The BSUN Dragon is a budget POM linear built for people who want a light, fast keystroke without paying boutique prices. Offered in 33g and 42g weights, with a self-lubricating POM stem in a PC-top/PA66-bottom housing, it performs well for its sub-quarter-dollar cost. It suits gamers and light-touch typists who like a short, brisk travel.

Specs and Feel

This is a clean linear with no bump and no surprises in the stroke. The headline is the weighting: the 33g version actuates at a feather-light 33g and bottoms out around 40g, while the 42g option moves to 42g actuation and 50g bottom-out for those who push through their keystrokes. Travel is shorter than MX standard (1.6mm pre-travel and 3.8mm to the floor), which makes presses feel quick and responsive rather than long and deliberate. The POM stem keeps the slide smooth out of the box, with only faint scratch detectable on close listening. Stem wobble is average for the price point: present if you go looking, but unobtrusive in normal use. The 22mm spring gives a consistent, gentle return without a harsh top-out.

Tuning

The Dragon is usable stock, but it rewards a light pass of thin lube on the rails and a dab on the springs to erase residual scratch and any ping. Films are optional and offer diminishing returns here given the housing fit; most builders will be happy stopping at lube.

Verdict

At this price, the BSUN Dragon is a genuinely good light linear and an easy pick for a full-board fill on a budget. Choose the 33g for the lightest possible touch or the 42g if you bottom out hard and want a little more resistance. Buy it if you want a smooth, short-travel linear that won’t break the bank; skip it only if you prefer heavier springs or a longer, full-4mm stroke.