TacFire UPK4 AR-15 Upper Parts Kit

Compatible with most Mil-Spec upper receivers, the TacFire UPK4 AR-15 Upper Parts Kit includes the essential components needed to complete your custom AR-15 upper receiver, including an extended charging handle designed to facilitate lightning-fast operation with either hand. Each component is manufactured to Mil-Spec standards for reliable fit and function. This kit includes one forward assist assembly (plunger, spring, and roll pin), one ejection port cover door, one ejection port cover spring, and one ejection port cover rod and retaining clip. Compatible with most Mil-Spec upper receivers.