This is a new 10mm Glock in the powerful 10mm round. The 10mm is a less powerful round that the .40 S&W, in fact, it is a necked down 10mm; yielding less propellant. The ballistic equivalent of the Glock 10mm is the .41 Magnum. Regardless, this pistol has the rare and desirable green lower and has only had 10 rounds test fired through it. It has a holster and spare magazine included along with Glock box with inspection papers and warranty and sowners guide. Spare mags available for sale. Certified funds, signed FFL, and certified for sale in your state.