Stevens Model 520-30
Stevens · Shotgun · Discontinued · 1942
Also known as: Model 520-30, Stevens Trench Gun, Stevens-Savage 520-30, Shotgun M520-30
Overview
The Stevens Model 520-30 is the World War II military trench-gun variant of John Browning's hammerless 'humpback' pump-action shotgun, built by the J. Stevens Arms division of Savage. Chambered in 12 gauge with a 20-inch cylinder-bore barrel, it was fitted with a perforated steel heat shield and a bayonet lug for the M1917 bayonet, and issued to US forces as a trench, riot and guard gun. It fed five 2.75-inch shells from a tubular magazine.
Specifications
| Weight (empty) | 3400 g (119.9 oz) |
| Overall Length | 1010 mm (39.76") |
| Barrel Length | 508 mm (20.00") |
| Action Type | Pump Action |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 5 rounds |
| Magazine Type | Tube |
| Muzzle Velocity | 400 m/s (1312 fps) |
| Muzzle Energy | 2560 J (1888 ft·lbf) |
| Effective Range | 40 m (44 yd) |
| Barrel Rifling | None |
| Frame Material | Steel |
| Slide Material | Wood |
| Barrel Material | Steel |
| Stock Material | Wood |
| Finish | Parkerized |
Calibers
- 12 Gauge · primary — also known as 12GA, 12 Bore
Features
- Firing modes: Repeating
- Feed systems: Tubular Magazine
- Safety mechanisms: Cross Bolt Safety
- Features: Humpback Receiver, Hammerless Action, Takedown Design, Side Ejection, Tubular Magazine, Perforated Heat Shield, Bayonet Lug, Sling Swivels
Base model
Service history
Operators
- United States Army · adopted 1942 · as Shotgun, Trench, M520-30
- United States Marine Corps
- United States Navy
Conflicts
- World War II (1939-1945)
Production
Estimated total produced: 33,306 · Production years: 1942-1945
US government procurement figure for the military Model 520-30 trench gun
Origin
Country of origin: United States
Designer: John Browning
Discontinued: 1945
Notes
The 520-30 was an improved wartime version of the earlier Model 520A, with a redesigned heat shield and bayonet adapter. Roughly 33,306 Model 520-30 trench guns were procured for the US military between 1942 and 1945. Sporting versions of the parent Model 520 used 711 mm (28 in) or 762 mm (30 in) barrels; the trench gun used a 508 mm (20 in) barrel. Empty weight is commonly cited at about 7.5 lb (3.4 kg).
Background
A classic American trench gun: Browning's distinctive humpback hammerless pump action wrapped in a ventilated steel heat shield with a bayonet lug, the Stevens 520-30 was issued for brutal close-quarters and guard work in the Second World War.