Which accessory helps improve accuracy when using a bow?

A peep sight is an accessory that significantly enhances accuracy when using a bow. It is a small circular opening typically mounted on the bowstring, allowing the archer to align their eye with the arrow and the target. By providing a consistent point of reference, the peep sight helps the archer maintain proper sight alignment, which is crucial for achieving precision in aiming. This consistent alignment helps to minimize variations in shot placement that can occur due to shifting focus or misalignment, thereby improving overall accuracy.

The other options, while beneficial in different ways, do not primarily serve the purpose of improving accuracy. Field points, for instance, are used mainly for target practice and do not influence the shot's accuracy directly. Silencers are designed to dampen noise and vibration when the bow is shot, enhancing comfort rather than accuracy. An armguard protects the archer’s arm from the bowstring upon release but does not directly contribute to improving shooting precision.