The Pounder Nail Gun is a fairly powerful melee weapon, dealing high damage per hit and has a high knockdown value. It is also compact enough to retain a high Concealment rating when used with certain skills in a Dodge build.
Such strengths are offset by the weapon's rather short range and lengthy charge time, rendering it cumbersome and awkward to use in tight quarters.
The Pounder, upon hitting a solid object, will drive a nail into said object, making an audible noise in doing so. It seemingly has an endless magazine of nails as the player character never has to reload from prolonged use at all.
The Pounder's internal asset name is "nin", possibly a reference to the stylized abbreviation of American rock band Nine Inch Nails.