Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers
the legendary stopping power of the .45 AUTO round with 10/13 round
magazine capacity. The Modular Back Strap design on the G21 Gen4 lets
you instantly customize its grip to adapt to an individual shooter's
hand size. The surface of the frame employs the new scientifically
designed, real-world-tested, Gen4 rough textured technology. Internally,
the new GLOCK 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 Gen4 system is
the perfect complement to this iconic .45 caliber cartridge.
Black Interchangeable Backstrap
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