ruger-57 is a self-loading pistol, automatic pistol caliber 5.7 × 28 mm. used by us army, special forces and united states navy,

caliber 5 7x28mm ruger 57 pistol gun handgun ruger-57 pistol-57 tactical defend special protect forces gunshot swat sniper target dangerous shot police arm marines realistic pistols 9 mm semi modern force military semiautomatic semi-automatic self-defense weapon security 9mm automatic army firearm usa