The Glock 27 G4 is the Mighty Mini in .40 cal. It is amazingly accurate and controllable, the G27 puts 10 rounds of .40 cal. at your fingertips in a packable small enough for a pocket or ankle holster. This is the ideal backup gun to complement the larger Clock .40s. Externally, what is immediately apparent is the multiple back strap design of the frame, which can be instantly adapted to small, standard and large frame hands. The surface of the frame is the Gen4 Rough Textured frame scientifically designed, real world tested, Internally, the Gen4 Clock dual recoil spring assembly substantially increases the life of the system. A reversible magazine catch, changeable in seconds, accommodated left or right handed operators.