Grappling Gun by WKCore on DeviantArt

lol grappling hook go brrrrrrrr by TyrantLizardDork on DeviantArt

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Grapple Gun by Corven55 on DeviantArt

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Grappling Gun by WKCore on DeviantArt

TDK Trilogy Batman's Grappling Gun (no colour atm) by Conduitt on DeviantArt

ArtStation - Greifhakengewehr - Grappling hook launcher

Double-Barrel-Grapple-Gun by TrevorMc112 on DeviantArt

ArtStation - Grappling gun from the movie Batman vs Superman

Batman begins grappling gun by Hardreplic on DeviantArt

grappling hook blueprint by graemo on DeviantArt

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Grappling Gun by WKCore on DeviantArt

Custom Sandman's Grapple Gun aka Wirepoon by firebladecomics on DeviantArt