US Patent 11105572 Modular forward assist for firearms

A device implementable on a firearm includes a forward assist assembly which is configured to be installed on an upper receiver of the firearm. When pressed, the forward assist assembly moves along a longitudinal axis thereof to engage with a serration cut on a bolt carrier of the firearm to push the bolt carrier forward with respect to the upper receiver when pressed. The forward assist assembly includes a modular component slidingly attachable to and detachable from the forward assist assembly.