Smyth Busters: Does Every AR-15 Need an Adjustable Gas Block?
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This video debunks the myth that every AR-15 needs an adjustable gas block. While adjustable gas blocks are useful for fine-tuning gas flow, particularly to reduce the gas in over-gassed rifles, they cannot fix an under-gassed system. The description explains that an adjustable gas block can only restrict gas flow, not increase it, as the barrel's gas port limits the total amount of gas available. The video suggests that manufacturers often over-gas AR-15s for reliability, making adjustable gas blocks beneficial for reducing excess gas and shooting softer, especially on AR-308 platforms. It contrasts this with using a heavier buffer, highlighting the adjustable gas block as a superior solution for managing gas.
