Jarmann M1884 Country Norway Type Rifle Manufacturer Jarmann Introduction 1878 Specifications Weight 4.5 kg (10 lb) Length Unknown Barrel length 850 mm (33.5 in) Cartridge 10.15 x 61R rimmed Action Bolt action Rate of fire Unknown, but as fast as the operator could operate the action Muzzle velocity 485 to 500 m/s (1,191 to 1,640 ft/s) Effective range 2,400 m (2,600 yd) Feed system 8 round tubular magazine Sights V-notch and front post

The Norwegian Jarmann M1884 was among the first bolt action repeating rifles to be adopted in the Western world. Its adoption, and subsequent modifications, turned the Norwegian Army from a fighting force armed with single-shot black powder weapons into a force armed with modern repeating weapons firing smokeless ammunition. Several thousand were manufactured to equip both Norwegian and Swedish forces in the 1880s. The design is unique, and was the brainchild of Norwegian engineer Jacob Smith Jarmann. After the design had been phased out of the Norwegian Army, a number of the weapons were rebuilt as harpoon guns.

Despite the problems with the weapon, no fewer than 30,000 were manufactured for the Norwegian armed forces in the decade between its adoption in 1884 and the later adoption of the Krag-Jørgensen in 1894. A further 1500 were manufactured for the Swedish Navy in the same period. In Norwegian service, it replaced the Remington M1867 and the last few kammerladers still in use.