The P50 pistol features the 5.7x28mm cartridge for its accuracy and distance capabilities. The pistol features Picatinny-style rails and QD mounts for accessories to meet the needs of the job at hand. The P50 platform is based around a 50 round and double stack magazine. Includes two magazines.- CALIBER 5.7x28MM- MAGAZINES (2) 50rd capacity - FNP90 style- BARREL 9.6"- MUZZLE 1/2x28 TPI- GRIPS Synthetic