| AAI amphibious revolver | 
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| Type | Revolver | 
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| Place of origin | United States | 
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| Designer | Irwin R. Barr John L. Critcher
 | 
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| Designed | 1967 | 
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| Manufacturer | AAI Corporation | 
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 The AAI underwater revolver is an amphibious firearm intended for naval use.[1] The weapon was designed by Irwin R. Barr and John L. Critcher and uses a six-round cylinder inside a jacket covered by a float. 
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