Gas Piston Bushing


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– Gas Piston Bushing for GIBBZ Arms G4 side charging upper receiver

– Guides the piston rod used in many aftermarket Gas piston kits

– Over twice as long as bushings supplied with most kits

– Replaces the steel insert that normally holds the gas tube in a G4 Upper

– Simply unscrew the steel insert and screw in the bushing


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