The Glock 37 brings together two of the most sought after qualities in handguns now: legendary .45 power in the .45 G.A.P. cartridge with the universally accepted Glock design. Glock's revolutionary Safe Action System, polymer construction, hammer forged barrel, and hard-as-diamond finish are given new life with the unquestioned efficiency of the .45 G.A.P. ammunition. 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. Internally, the Gen4 Glock dual recoil spring assembly substantially increases the life of the system. A reversible magazine catch, changeable in seconds, accommodates left or right handed operators. This double-action-only pistol features 3-dot night sights and includes two 10-round magazines and the original factory hard case. Its grips, metal, and bore are all in very good condition.