Welrod Mk IIA
Inter-Services Research Bureau (SOE Station IX) · Pistol · Out Of Production · 1943
Also known as: Welrod, Welrod Mark IIA, SOE Welrod, Welwyn Pistol, Hand Firing Device Mk IIA
Overview
The Welrod Mk IIA is a British manually-operated, magazine-fed, bolt-action pistol with an integral suppressor, developed during World War II by Major Hugh Reeves and the clandestine-weapons team at SOE Station IX (the Inter-Services Research Bureau) at The Frythe near Welwyn, Hertfordshire. It is the definitive mass-production .32 ACP (7.65x17mm Browning SR) model of the Welrod family, fed from an 8-round detachable box magazine that also forms the pistol grip. The cylindrical steel body houses an integral suppressor occupying the forward portion of the weapon, containing a stack of rubber wipes and metal baffles into which the ported barrel vents to keep the muzzle report below roughly 125 dB - making the Welrod one of the quietest firearms ever issued to any military. Each shot is manually cycled by rotating and drawing the rear bolt to eject the spent case and chamber a fresh round, deliberately sacrificing self-loading so that no reciprocating slide betrays the operator. The pistol bears no manufacturer markings, proof stamps, or serial numbers to preserve operator deniability. It was purpose-built for close-range clandestine assassination, sabotage, and escape-and-evasion work by SOE and OSS agents and Allied resistance fighters in occupied Europe, and examples were retained by British and American special operations units for decades afterward.
Specifications
| Weight (empty) | 1000 g (35.3 oz) |
| Weight (loaded) | 1090 g (38.4 oz) |
| Overall Length | 305 mm (12.01") |
| Barrel Length | 83 mm (3.27") |
| Height | 120 mm (4.72") |
| Width | 32 mm (1.26") |
| Sight Radius | 180 mm (7.09") |
| Action Type | Bolt Action |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 8 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 275 m/s (902 fps) |
| Muzzle Energy | 174 J (128 ft·lbf) |
| Effective Range | 25 m (27 yd) |
| Maximum Range | 50 m (55 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Number of Grooves | 6 |
| Frame Material | Steel |
| Barrel Material | Steel |
| Finish | Parkerized |
Calibers
- .32 ACP · primary — also known as 7.65x17mm Browning SR, 7.65mm Browning, .32 Automatic, 7.65mm Auto
Features
- Firing modes: Manual
- Feed systems: Detachable Box Magazine 8 Round
- Safety mechanisms: Grip Safety, Manual Bolt Operation
- Features: Integral Suppressor, Wipe Type Baffles, Ported Barrel, Manually Rotated Bolt, No External Markings, No Serial Numbers, Removable Magazine Doubles As Grip, Subsonic Ammunition Only, Single Shot Bolt Reload Cycle, Rubber Grip Panels
Variants
- Welrod Mk II - Wartime 32acp
- Welrod Mk I (9mm) - 9mm Parabellum
Base model
Service history
Operators
- Special Operations Executive · adopted 1943
- Office of Strategic Services · adopted 1943 · as Welrod
- Special Air Service · adopted 1950
- French Resistance · adopted 1943
- Danish Resistance · adopted 1943
- Norwegian Milorg · adopted 1943
- Polish Home Army · adopted 1943
Conflicts
- World War II (1943-1945)
- Vietnam War (1964-1973)
- Falklands War (1982)
- Gulf War (1991)
Production
Estimated total produced: 14,000 · Production years: 1943-1945
Roughly 2,800 Welrods were made during the war and about 14,000 in total including postwar assembly; the .32 ACP Mk II/Mk IIA was the most numerous variant. Principal production by the Birmingham Small Arms Company (BSA) under SOE contract, with additional assembly at SOE Station IX. No serial numbers or markings were applied, making exact figures difficult to verify.
Origin
Country of origin: United Kingdom
Designer: Major Hugh Reeves (SOE Station IX / Inter-Services Research Bureau)
Discontinued: 1945
Notes
The Mk IIA is the standardized wartime/immediate-postwar .32 ACP production Welrod, with an 8-round magazine (versus the 6-round 9mm Mk I). It is fired with the bolt forward and locked on a chambered round, the grip safety depressed by the firing hand. Sources vary on exact figures because the weapon carried no markings and was produced under secrecy; overall length is commonly cited around 300-310 mm and barrel length around 83 mm. Only subsonic .32 ACP ammunition should be used, as supersonic loads negate the suppressor's advantage. The rubber wipe discs at the muzzle are consumable and degrade after roughly 10-15 shots. Principal production was carried out by the Birmingham Small Arms Company (BSA) under SOE contract, with additional assembly at Station IX.
Background
The Welrod's name is a portmanteau of Welwyn - the Hertfordshire town near SOE's secret Station IX weapons workshop - and 'rod', wartime British slang for a pistol. Widely regarded as the quietest firearm ever issued to any military, its bolt-action design deliberately traded self-loading for near-total silence: the assassin accepted a single shot rather than let a cycling slide give the game away. Though built for one war, Welrods were quietly retained by British SAS armourers and reportedly carried on operations into the 1991 Gulf War, one of the longest clandestine service lives of any WWII-era firearm.