Design for Hi-capa 5.1 Series Airsoft Gas Blow Back Pistol. Aluminum Construction, more Robust and Light-Weight. A round hole at the top. With "AP" & "5.1" Marking on the top. Replace the standard Spring Guide of airsoft pistol.
Material : Aluminum Spring Guide Lenght : 100mm Major Color : Blue Weight with Package: 18g Manufacturer : AIP
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