Ep-4: The AR-15 Gas System. THIS Is Why & How Your AR-15 Works! Gas Blocks, Gas Tubes, Gas Ports.
This guide details the installation and alignment of an AR-15 gas system, a critical component for reliable operation. It covers selecting the correct gas block, precise alignment with the barrel's gas port using features like indexing dimples, and securing the components. Proper gas tube length and BCG engagement are also emphasized for optimal cycling. Instruction is provided by Randy from AT3 Tactical, highlighting expert knowledge in AR-15 mechanics.










