The G3 features an updated slide that includes front slide serrations for increased manipulation surfaces. The slide also comes optic ready allowing for direct mounting of any optics that utilize the Fastfire 3, Vortex Viper, Vortex Venom, or Trijicon RMR footprints. Additional improvements include a polished stainless barrel and a redesigned metal slide stop. The G3 series also retains FMK's shock-absorbing backstrap, beveled magwell, and accessory rail.