The GLOCK Training pistols were developed for the purpose of enabling reality-based tactical operations’ training with color marking or plastic bullet ammunition. The slide with polymer inserts reduces its weight to comply with the increasing diversity of modern training ammunition. These pistols use the popular FX or FOF ammunition, which are used by military and law enforcement units around the world. The Modular back strap system makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters.