Early Cartridge Conversion
U.S. .45-70 Trapdoor Springfield Extractor
Pulls the spent case partway from the chamber.
The reference
Documented on this arm
- U.S. 45 70 Trapdoor Springfield Extractor
Interchange
What a U.S. .45-70 Trapdoor Springfield extractor also fits
No interchange has been recorded for this part yet. Butch Schoeller writes these notes only from parts he has handled — a blank here means nothing has been checked, not that everything fits.
From the bench
Availability
Stock
No extractor for the U.S. .45-70 Trapdoor Springfield at the moment
Almost everything here is one of a kind, so it turns over item by item rather than in runs. A wanted listing is the reliable way to hear when the right one surfaces — and it is also what tells Butch which parts are worth making next.
Put it on the wanted board · Everything for the U.S. .45-70 Trapdoor Springfield
How the mechanism works
Plates & drawings
Original patent drawings for this mechanism, filed by the people who designed it, with every component called out and numbered. They are grouped by how the part works rather than by which arm it came off — the classification that put them here names the mechanism and says nothing about the gun.
All U.S. .45-70 Trapdoor Springfield parts · Extractor across every arm · The early cartridge conversion era