Building an Upper Receiver: Part - 2

Today we are finishing up building our AR-15 Upper Receiver. We will walk through the installation of our hand guard, muzzle device, back up sights, charging handle and bolt carrier group.   Those components in order are: SLR Rifleworks Solo Ultra Light 15" Rail,  Surefire ProComp, Magpul MBUS, Bravo Company Gunfighter Charging Handle and a DSG Arms Nickel Boron Enhanced Bolt Carrier Group.

If you missed Part 1, you can find it Here: https://kitbadger.com/building-a-upper-receiver-part-1/