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How to remove the inner metal heat shield from a standard M-4 hand guard.

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If you have the standard round CAR handguards you would not remove the heat shield held in place with pegs to install the rail. Press the mounting screws through the vent holes until they engage the rail then tighten them. The screws will pull themselves through the holes when that is done.
The M-4 handguards with double shields have notches cut into the sides which hold the shields in place. The shields should be pulled out of the notches on one side till they clear so they can be pulled out. Be careful not to bend the shields.
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