Purpose: An ambidextrous magazine release allows the shooter to eject the magazine using either hand without changing grip, primarily benefiting left-handed users for faster, more natural reloads,...

Purpose: The bolt catch in an AR-15/AR-10 is a small but essential lever on the lower receiver that performs two primary functions; It automatically locks the bolt carrier group open after the last...

Purpose: Pivot pins on a rifle, typically found on AR-style platforms, serve as the hinge points that connect the upper and lower receivers, allowing the rifle to be opened for maintenance, cleaning,...

Forward Assist: A forward assist is a feature on some rifles that allows the shooter to manually push the bolt into the fully locked position if it fails to close properly, ensuring reliable...