Retroarms Bolt Catch M4/M16 Type A Silver

This component, known as the Bolt Catch or Ping Pong Paddle, is typically used in real firearms to release the firing mechanism after reloading. There are also airsoft replicas that feature this function, especially those that operate on gas.

In this case, the bolt catch presented is purely ornamental and is manufactured by Retro Arms, intended for classic electric replicas where a functional system is not required. This model of bolt catch is based on a spring mechanism rather than a securing pin. With minor modifications, replicas that originally had a bolt catch with a pin can utilize this spring-based system.