Surface and Materials

When it comes to cheap mice, many companies tend to cheap out on the materials (and CM did so in the past with the MasterMouse S), but thankfully, the CM310 features a sturdy shell and some nice coating on top. The top part, including the main buttons, has a matte UV coating which feels pleasant to the touch. It's a rather soft surface and tends to collect fingerprints easily, though they are also easily cleaned off.


The side grips are rubberized on both sides, with a horizontally lined texture to them. For me, these are definitely topnotch, among the best side grips I've ever used. They provide a lot of grip and tackiness, so there's pretty much no chance of accidental slips even when picking up the mouse, and my hands are quite sweaty even when gaming.

The side, CPI, and lighting-control buttons on top of the mouse are glossy, and the scroll wheel has a rubberized outer layer.

Build Quality

My expectations were rather low as many mice in this price segment suffer from at least one serious build quality issue, but thankfully, this is not the case with the CM310. The mouse is solid; only the CPI and light-changing buttons have a very quiet rattle that can be heard when the mouse is shaken harshly in midair. Other than that, I encountered no creaks, squeaks, or misalignments.

Weight

At 100 grams, the CM310 is a tad heavy for its size in my opinion, but again, this is mostly up to personal preference. Even though I'm used to lightweight mice, it didn't bother me after a few minutes had passed with the initial testing procedure because the it is very well balanced. The CM310 doesn't feel front or back heavy at all.