Match grade frequently refers to firearm part and ammunition that are suitable for a competitive match. Sometimes, it also refers to other devices and parts that made with high precision.
In firearms, the term is used to refer to ammunition and gun parts that are designed and manufactured such that they have a relatively low-tolerance and high level of accuracy. In addition to its use in shooting sports, match grade equipment is often employed by military and law enforcement sharpshooters.
Manufacturing match grade ammunition and other parts requires extremely tight tolerances and quality control. It is not unusual for match-grade ammo and parts to cost an order of magnitude (e.g. ~10x) more than the comparable non "match" counter-parts.