An AR forward assist is a mechanical plunger located on the right side of the upper receiver that serves as a manual override to ensure your rifle is fully locked in battery. If debris, heavy carbon buildup, or a sluggish recoil cycle prevents the bolt carrier group from completely seating a round, or if you have just performed a press check (brass check) to visually verify a chambered round and the bolt fails to close entirely on its own, a quick tap on the forward assist physically pushes the carrier forward to lock the bolt lugs. Essential for tactical applications, hunting, and silent loading environments where you need to quietly ride the charging handle forward rather than letting it slam, a reliable forward assist assembly provides the mechanical leverage needed to guarantee your rifle is completely in battery and safely ready to fire.