Glock PA225S203MOS: This Glock 22 introduces revolutionary design changes to this model of perfection that the majority of law enforcement across the country put their trust in every day. Its modular back strap design lets you instantly customize the grip to adapt to an individual shooter\'s hand size. The frame employs the scientifically designed, real-world-tested, rough textured technology. Internally, the dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch, changeable in seconds, accommodates left- or right-handed operators. The Gen 5 technologies including the NDLC finish, a flared mag-well, the enhanced Glock Marksman Barrel (GMB) for increased accuracy, and an ambidextrous slide stop lever and in MOS configuration. MOS means that the slide is in-letted to allow for the acceptance of optics.