Purpose: A gas block and tube in a rifle, typically found in gas-operated firearms like the AR-15, work together to cycle the action. Gas blocks redirect a portion of the high-pressure gas from the fired cartridge through the gas tube, which then drives the bolt carrier group rearward to eject the spent case and chamber a new round. This system ensures reliable, semi-automatic or automatic operation by harnessing the energy from the fired round.
Details: Black, .750"
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