MG 08/15
Deutsche Waffen- und Munitionsfabriken · Machine Gun · Out Of Production · 1915
Also known as: MG 08/15, Maschinengewehr 08/15, Spandau MG 08/15, lMG 08/15 (air-cooled aircraft variant), ckm wz.08/15 (Polish designation)
Overview
The MG 08/15 (Maschinengewehr 08/15) is a lightened, bipod-equipped infantry variant of the German Imperial Army's MG 08 heavy machine gun, introduced in 1915 to provide infantry squads with organic automatic fire support that could keep pace with attacking troops. The standard MG 08 with its Schlitten 08 sledge mount weighed approximately 62 kg combat-ready and required a four-to-six-man crew, making it strictly a defensive position weapon; the German High Command's experience with French Chauchat and British Lewis squad LMGs in 1914-1915 made clear that infantry attacks needed organic, mobile automatic firepower. Spandau and DWM engineers responded by stripping the MG 08 design down to essentials: the heavy water-cooling jacket was reduced from 5.3 inches to 3.5 inches in diameter (capacity from 7 to 5 pints), the sledge mount was eliminated in favor of a simple folding bipod, a wooden shoulder stock and pistol grip were added, and the receiver was redesigned with a stepped profile to accommodate the changes. The result was a 17.7 kg water-cooled belt-fed light machine gun that, while still bulky and crew-served by modern standards, was substantially more mobile than the parent MG 08. Approximately 130,000 units were produced during the First World War, peaking at 14,400 per month by mid-1918, and the weapon equipped German infantry squads, machine gun companies, and aircraft (as the air-cooled lMG 08/15 'Luftgekuhlt' variant for observer positions) throughout the war. After Versailles restrictions, surplus MG 08/15s served in Reichswehr and later Wehrmacht second-line and reserve units through the Second World War, particularly on the Eastern Front and in fortress applications.
Specifications
| Weight (empty) | 17700 g (624.3 oz) |
| Weight (loaded) | 22000 g (776.0 oz) |
| Overall Length | 1445 mm (56.89") |
| Barrel Length | 721 mm (28.39") |
| Action Type | Short Recoil |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Automatic Only |
| Magazine Capacity | 100 rounds |
| Magazine Type | Belt |
| Muzzle Velocity | 866 m/s (2841 fps) |
| Muzzle Energy | 4800 J (3540 ft·lbf) |
| Effective Range | 1800 m (1968 yd) |
| Maximum Range | 3500 m (3828 yd) |
| Rate of Fire | 450 rpm |
| Barrel Rifling | Right Hand |
| Number of Grooves | 4 |
| Frame Material | Steel |
| Barrel Material | Steel |
| Stock Material | Wood |
| Finish | Blued |
Calibers
- 7.92x57mm Mauser · primary — also known as 8mm Mauser, 8x57mm IS, 8x57mm JS, 7.92mm Mauser
Features
- Firing modes: Full Automatic
- Feed systems: Fabric Belt 100 Round Pannier, Fabric Belt 250 Round
- Safety mechanisms: Manual Safety
- Features: Water Cooled Barrel Reduced Capacity, Toggle Lock Short Recoil, Integral Bipod, Wooden Shoulder Stock, Pistol Grip, Drum Pannier Belt Box, Infantry Squad Lmg Role, Stepped Receiver Redesign
Variants
- MG 08/15 (base) — Infantry Water Cooled Lmg
- lMG 08/15 (Luftgekuhlt) — Air Cooled Aircraft Observer Gun
- MG 08/18 — Fully Air Cooled Late War
Base model
Service history
Operators
- Imperial German Army · adopted 1915
- German Reichswehr · adopted 1919
- Nazi Germany Wehrmacht · adopted 1935
- Imperial Russian Army (captured) · adopted 1916
- Royal Hellenic Army
- Polish Army · adopted 1919 · as ckm wz.08/15
- Finnish Defence Forces · adopted 1918
- Republic of China National Revolutionary Army
- Spanish Republican Forces (Spanish Civil War) · adopted 1936
Conflicts
- World War I (1915-1918)
- Russian Civil War (1917-1922)
- Polish-Soviet War (1919-1921)
- Finnish Civil War (1918)
- Spanish Civil War (1936-1939)
- World War II (1939-1945)
Production
Estimated total produced: 130,000 · Production years: 1915-1918
Approximately 130,000 units produced during WWI between the Spandau Gewehrfabrik and Erfurt Royal Prussian Arsenal, with peak production reaching 14,400 units per month by mid-1918. Limited postwar production for Reichswehr units. Many WWI-era weapons remained in second-line German service through 1945.
Origin
Country of origin: Germany
Designer: Spandau Arsenal / DWM design teams (based on Hiram Stevens Maxim's mechanism)
Discontinued: 1945
Notes
Although designed as a 'light machine gun' at 17.7 kg / 22 kg with belt and water, the MG 08/15 was widely criticized as too heavy for true infantry mobility. By WWII standards it qualifies as a medium machine gun. The 'stepped' receiver profile is the easiest visual identifier between the MG 08/15 and the parent MG 08. Belts were typically supplied in 100-round trommel-pannier drums attached to the receiver's right side, simplifying portability versus the MG 08's loose 250-round canvas belts. The lMG 08/15 'Luftgekuhlt' variant deletes the water jacket entirely and substitutes a perforated air-cooling jacket with cooling fins, used in observer positions of two-seat aircraft like the LVG C.V and DFW C.V. The further-evolved MG 08/18 of 1918 went fully air-cooled for ground use and was effectively a transitional design toward the later MG 13 / MG 34. In German military slang the term 'null-acht-fünfzehn' ('zero-eight-fifteen') became colloquial shorthand for 'standard issue' or 'mediocre / unremarkable' - a linguistic echo of the gun's near-universal but unloved presence in WWI German infantry.
Background
The MG 08/15 became so ubiquitous in WWI German infantry that its designation entered the German language as 'null-acht-fünfzehn' - slang for 'standard issue', 'mediocre', or 'nothing special' - a phrase still used today to describe anything boringly conventional. Despite weighing 22 kg loaded with water and ammunition, the MG 08/15 was the closest thing the Kaiser's army had to a modern squad automatic weapon, and German stormtroopers in 1918 'Hutier tactics' assaults dragged them across no-man's-land slung from leather harnesses, providing crucial fire support to bypass-and-encircle infiltration teams.