Welcome back to the STNGR Workshop! In today's episode, we talk all about the upper receiver in the AR-15. We're going to cover each of the upper's components: the bolt carrier group, gas block and gas tube, charging handle, forward assist, and ejection port. To see the video with accompanying blog and images, check out: https://www.stngrusa.com/introduction-to-the-ar-15-upper-receiver-components