The Firearm industry uses polishing equipment to aid in finishing small moving parts in rifles and handguns, such as springs, trigger parts, shafts, etc. By use of vibratory deburring and/or tumbling of these parts, the firearm is less likely to malfunction or jam, and helps the gun or rifle perform to its optimal capacities.

Ammunition manufacturers also tumble or use vibratory machines to polish the inside & outside of bullet and shell casings, or bullet tips.