General Specifications by Caliber
Benjamin Bulldog M357 (.357 caliber)
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Muzzle Energy: Up to 300 ft-lbs (FPE)
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Velocity: Up to 1,135 fps
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Air Reservoir: 440cc (upgraded from earlier 340cc versions)
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Max Fill Pressure: 3,000 PSI
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Magazine Capacity: 5-shot magazine
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Overall Length: 36 inches
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Weight: ~7.7 lbs
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Barrel Length: 28 inches (rifled)
Benjamin Bulldog .457 (.457 caliber)
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Muzzle Energy: Up to ~450 FPE (over 400 ft-lbs on initial shots)
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Velocity: Up to 760 fps
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Air Reservoir: 440cc
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Max Fill Pressure: 3,000 PSI
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Magazine Capacity: 3-shot gravity-fed magazine
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Overall Length: 36.3 inches
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Weight: ~8.7 lbs
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Barrel Length: 28.5 inches
Design: Compact bullpup configuration with a synthetic clamshell stock.
Optics & Rails: Full-length top Picatinny rail for mounting scopes, night vision, or thermal optics.
Trigger: Two-stage trigger with a pull weight of approximately 3 lbs.
Muzzle: M18 threaded muzzle on select models for adding a moderator/suppressor.
When you look for optical accessories, the Bulldog's manual states this: "Use of 37mm tall (Absolute Co-Witness) rings, widely used with the AR platform, are recommended." You may also use other sighting systems suited for AR platforms.