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  2. Springfield model 1873 - Wikipedia

    en.wikipedia.org/wiki/Springfield_model_1873

    The Springfield Model 1873 was the first standard-issue breech-loading rifle adopted by the United States Army (although the Springfield Model 1866 had seen limited issue to troops along the Bozeman Trail in 1867). The rifle, in both full-length and carbine versions, was widely used in subsequent battles against Native Americans.

  3. Springfield Model 1868 - Wikipedia

    en.wikipedia.org/wiki/Springfield_Model_1868

    In the late 1860s and early 1870s, many army units continued to use outdated rifled muskets and other weapons like the Spencer.56 caliber repeating rifle and Sharps.52 caliber percussion rifle. The army wanted to standardize weapons and ammunition, and forced these units to switch to trapdoor Springfields once the Model 1868 went into full ...

  4. Springfield model 1870 - Wikipedia

    en.wikipedia.org/wiki/Springfield_model_1870

    The Springfield Model 1870 was one of the rifles which used the trapdoor breechblock design developed by Erskine S. Allin. The Model 1870 was a minor improvement to the Springfield Model 1868 , and retained most of the Model 1868 rifle features.

  5. Springfield Model 1865 - Wikipedia

    en.wikipedia.org/wiki/Springfield_Model_1865

    The hinged breechblock caused these rifles to be named "Trapdoor Springfields". Approximately 5,000 Civil War Model 1861 rifled muskets were converted at the Springfield Armory in 1866. It soon became apparent that many of the small working parts in the breech system were not going to have a long service life, and the action was too complicated ...

  6. Springfield Model 1869 - Wikipedia

    en.wikipedia.org/wiki/Springfield_Model_1869

    Originally, the trapdoor Springfields were created to convert Model 1863 Springfield rifled muskets to breech-loading rifles at a relatively low cost. The Model 1869 Cadet Rifle was a shortened version of the Springfield Model 1868. It had a 29.5 inch barrel, compared to the 32.5 inch barrel of the Model 1868, and had an overall length of 48.8 ...

  7. Springfield model 1884 - Wikipedia

    en.wikipedia.org/wiki/Springfield_Model_1884

    The Springfield model 1884 was one of the "Trapdoor Springfield" rifles. It was an improved replacement for the previous longarm of the U.S. Armed Forces, the Springfield model 1873 and its variants.

  8. Trapdoor mechanism - Wikipedia

    en.wikipedia.org/wiki/Trapdoor_mechanism

    Springfield Model 1888, trapdoor mechanism open. In firearms, a trapdoor is a form of breech-loading mechanism for rifles in which a hinged breechblock rotates up and forward, resembling the movement of a trapdoor. [1] The Springfield models 1865 and 1873 were best known for first employing this type of action. [2]

  9. Springfield Model 1888 - Wikipedia

    en.wikipedia.org/wiki/Springfield_Model_1888

    The Springfield Model 1888 was one of several models of rifles produced by Springfield Armory for the United States military in the late 19th century. It was the final design in a long line of rifles which used the trapdoor breechblock design developed by Erskine S. Allin in the 1860s and the last single-shot rifle to see American military service.