The First Trapdoor Springfield Carbine, Model 1870

Published on March 24, 2021
Duration: 6:13

The Model 1870 Trapdoor Carbine represents a rare and significant step in US military firearm evolution, being the only Trapdoor carbine produced in .50 caliber before the shift to .45-70. Its design incorporated mechanical improvements over the 1868 model, such as a wider breech block opening angle, and featured distinct carbine elements like a side-mounted sling bar instead of swivels. With only 362 units manufactured, its extreme rarity makes it a highly prized collector's item for enthusiasts of early breech-loading firearms.

Quick Summary

The Model 1870 Trapdoor Springfield Carbine is extremely rare, with only 362 units produced. It's the only Trapdoor carbine made in .50 caliber before the 1873 shift to .45-70, featuring a shorter receiver and a more secure breech block opening angle.

Chapters

  1. 00:00Introduction: Model 1870 Trapdoor Carbine
  2. 00:54Rarity: The .50 Caliber Trapdoor Carbine
  3. 01:51Markings and Components: 1864 Lock, 1870 Breech
  4. 02:39Sights and Receiver Changes for 1870
  5. 04:15Mechanical Improvements: Breech Block Angle
  6. 04:57Carbine Sling Bar vs. Rifle Swivels
  7. 05:25Production Numbers and Collector Significance

Frequently Asked Questions

What makes the Model 1870 Trapdoor Springfield Carbine so rare?

The Model 1870 Trapdoor Carbine is exceptionally rare because it was the only carbine variant produced in .50 caliber before the U.S. military standardized on the .45-70 Government cartridge in 1873. Only 362 were manufactured in total.

What are the key mechanical differences in the Model 1870 Trapdoor compared to earlier models?

The Model 1870 features an improved breech block design that opens to a wider angle, preventing it from accidentally closing during the loading process, a common issue with the earlier 1868 model.

How can you identify a Model 1870 Trapdoor Carbine?

Look for the '1870' date on the breech block, a shorter receiver compared to rifle versions, and a side-mounted sling bar and ring instead of sling swivels. The caliber should be .50-70.

What caliber was the Model 1870 Trapdoor Springfield Carbine chambered in?

The Model 1870 Trapdoor Springfield Carbine was chambered in .50-70 Government. This was a transitional caliber before the adoption of the more common .45-70 Government cartridge.

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