Ep-4: The AR-15 Gas System. THIS Is Why & How Your AR-15 Works! Gas Blocks, Gas Tubes, Gas Ports.

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The Ultimate AR15 Beginner's Guide: How does your AR-15 work? Gas, of course. Gas Ports, Gas Blocks, Gas Tubes & More. To understand how to adjust your AR-15 Gas properly or even pick out the right adjustable or low profile gas block...you need to know how it all works. Today, Randy walks you through the 5-Major components of the AR-15 Gas System and how they all work together!

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00:00 - Intro
00:23 - AR-15 Gas System
00:51 - Direct Impingement
02:00 - Gas System Components
02:10 - Gas
02:40 - Gas Port
03:10 - Gas Block
03:30 - Gas Tube
03:45 - Gas Key
03:53 - Gas Block Breakdown
06:27 - Gas Tube Breakdown
08:33 - Gas Block Alignment
09:48 - Ep-5 Upper Assembly