MARK I GYROJET PISTOL (ROCKETEER AUTOMATIC ROCKET) For Sale

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The Mark I Gyrojet Pistol is a distinctive firearm that fires caseless, spin-stabilized rocket projectiles in 12mm or 13mm calibers, achieving speeds of 1,250 feet per second within 0.12 seconds. Available with either a rare 2-inch or more common 5-inch barrel, this semi-automatic pistol features a smooth firing mechanism where each shot ignites a primer that propels the rocket into a fixed firing pin. The lightweight design, weighing 13 or 16 ounces, includes refined elements like smooth walnut grips and finish options such as standard black, antique nickel, and gold-plated. Early models are marked with an “A” prefix on their serial numbers, later switching to a “B” prefix. Despite its innovative design and collector appeal, the Gyrojet Pistol suffers from a lack of rifling, negatively impacting its accuracy, yet it remains a fascinating milestone in firearms development.

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