Rob Allen 110cm roller railgun: alloy v. carbon, notch/sharkfins/pin, slip barb v. regular RA barb? | DeeperBlue.com Forums
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Rob Allen Inverted Roller - Spearboard.com - The World's Largest Spearfishing Diving Boating Social Media Forum
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Rob Allen Aluminum Tuna Railgun - Open or Closed Muzzle 70-80-90-100-110-120-130-140-150cm Spearguns
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