AR 15 Full Build
jtffirearms
.300 Blackout AR15 Build... COD Warzone-style! AR 15 Builder
AT3 Tactical Knowledge Source: Beginner's Guides; AR-15 Tips; AR15 Tricks; Guns & Gun Building AR10 AR-10
AR-15 full takedown and assembly
JTF Firearms
COMPLETE AR-15 takedown and reassembly
JTF Firearms
Shooting the Karri's Gun Reaper 5.56 AR-15 rifle
Peter von Panda
AR 15 6.8 SPC Upper build
Adrenaline Fueled Firearms
AR15 Upper Receiver Takedown
JTF Firearms
Complete Ar15 Upper Receiver Installation Guide - A Must-watch!
jtffirearms
APS Firearms Inc Gas Block Pinning Jig Review
Armatis Reviews
SLR B15 Ambi Builder Looks And Performance
Tactical Considerations
AR Builders Guide: How to Build an AR-15 Upper Receiver Assembly LONG Version
HomesteadTechTalk