Rp Sedgeley Police Trade In WWII Era U.S. Navy MK 5 Signal Pistol

These photos represent the general condition of the product for sale, a Signal Pistol Mark 5 Police Trade-In. The price is for 1 flare gun.

As with many used trade-in firearms, these firearms may contain scratches and/or signs of wear. This is not always the case, but should not be unexpected.

U.S. Navy Mk 5 Signal Pistol (Sedgley, WWII-era) Compact, single-shot maritime flare launcher adopted by the U.S. Navy in 1942 for emergency and night-signal duties.

Model / Marking: Signal Pistol, Mark 5 – “USN” molded into the diamond-checkered Bakelite grip; military part & drawing numbers roll-stamped on the frame.

Manufacturer: R. F. Sedgley, Inc., Philadelphia, under Navy contract.

Caliber / Bore: 10-gauge Very flare (approx. 25 mm), smooth-bore steel barrel.

Action: Break-open, single-shot with double-action trigger – tip the barrel forward to load, close to lock, fire, extract manually.

Construction: Parkerized steel barrel and frame, cast-alloy sideplates, oil-resistant black Bakelite grip panels for corrosion resistance at sea; lanyard ring in butt.

Dimensions: Barrel length ~6 in (15 cm); overall length ~9.5 in (24 cm); weight ~2 lb (0.9 kg).

Service history: Standard issue on U.S. Navy surface ships, submarines, and lifeboats from WWII through the 1950s for visual distress and identification signaling.

A robust, purpose-built naval flare gun—collectible for its distinctive streamlined profile, wartime manufacture, and “USN” grip emblem.