Defensive pistols don’t shoot explosive shells, so close doesn’t count. Precise hits on vitals of opponents are required for effect, so pistol sights have evolved in many different directions. It’s impossible to cover all of them in one article, but we’ll look at the most common examples.
The most obvious direction is represented by target pistols: black front and rear for maximum contrast. As such designs go, the Soviet TT33 was decent — the front sight blade was narrow enough to let light around it, and it was possible to get a good sight picture quickly.
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