| 11. | As the stainless metal could not be parkerized, the gas tubes were given a stove-blackening that frequently wore off in use.
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| 12. | Carefully remove the artificial logs to get at the metal gas tubes, and clean the small holes that emit the gas.
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| 13. | The AK-74 gas tube has a spring washer attached to its rear end designed to retain the gas tube more securely.
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| 14. | The gas tube below the barrel was extended to the full length of the weapon to vent the gas outside the vehicle.
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| 15. | Both the standard and Para variants are equipped with a fixed, folding bipod mounted to the gas tube and stowed under the handguard.
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| 16. | The status and accessibility of the Burndy collection of gas tubes, vacuum tubes, and electronic artifacts is not clear from the Huntington website.
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| 17. | The M1 Garand was one of the first self-loading rifles to use stainless steel for its gas tube, in an effort to prevent corrosion.
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| 18. | Accuracy issues were noted since the front sight was mounted on the gas tube in front of the barrel, producing play after sustained fire.
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| 19. | The attackers managed to overcome the security personnel and started a fire, which caused the explosions of the two gas tubes inside the building.
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| 20. | This advantage is obviated since the gas tube is wired shut with lockwire to prevent the weapon from disassembling itself from vibration in hard use.
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