Batteries last longer than bullets, and can't be traced back to the shooter.

Besides, legally owning a suppressor requires it be registered, and this state prohibits their use.

You can get a good 150 mW laser on the internet for about what a good suppressor will cost you.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)