| Is Ranged: | yes |
| Vereinsgewehr 1857 | |
| Type: | Rifled musket |
| Origin: | Württemberg, Baden, Hesse |
| Design Date: | 1856 |
| Production Date: | 1857–1866 |
| Manufacturer: | Königlich Württembergische Gewehrfabrik and others in Suhl |
| Service: | 1861/2-1867/68 |
| Used By: | Württemberg, Baden and Hesse |
| Wars: | Austro-Prussian War |
| Part Length: | 100cm (00inches) |
| Cartridge: | 0.547inches Minié ball |
| Feed: | Muzzle-loaded |
| Action: | Caplock |
| Range: | 910m (2,990feet) (Baden and Württemberg sights), 1100m (3,600feet) (Hesse sights) |
| Weight: | 4.6kg (10.1lb) |
| Length: | 1.39m (04.56feet) |
| Variants: | Hesse variant |
| Number: | >70,000 (30,000 Württemberg; Baden and Hesse @ 20,000) |
The Vereinsgewehr 1857 (union rifle, mod. 1857) was the commonly developed rifle of Baden, Hesse and Württemberg for their troops of the 8th Bundesarmee corps as a successor of the Musket Model 1777 corrigé. The rifle for the line infantry was, with minor modifications in the sights, adopted by all three states; pistols and carbines for the cavalry and sharpshooter rifles for the Jäger were, however, developed by each state on its own.
The rifle has a percussion lock construction of Swiss model, i.e. there was no loading position of the hammer.
A number were converted to the Dreyse needle fire breech-loading bolt-action system in 1867, and became known as Model 1857/67.
Rifles from Hesse on the one hand and Baden and Württemberg on the other hand can be distinguished by their rear sights.
Württemberg and Baden union rifles and Jäger rifles use a sight with the scale below, from 200yard to 1000yard, constructed by 1st lieutenant Breithaupt.
Hesse instead used a quadrant sight with the scale above, max. 1200yard, after Darmstadt armoury colonel Müller.