Increase your accuracy with an upgraded tight bore barrel for your AEG. Find one of your liking with or without an R-Hop patch already installed to provide you with the ultimate precision.
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    Prometheus 6.03 EG Tight Bore Inner Barrel for AEG - Various Sizes (R-Hop Patch Options)
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    EdGI 6.00 Inner Barrels
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    Lambda "SMART .03" Precision Carbon Steel 6.03mm Tight Bore Inner Barrel for Tokyo Marui Spec AEGs
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    Angel Custom 6.01 363mm
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    Angel Custom 6.01 300mm