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Parts for arms of pre-1899 design. Components only — we never sell a firearm.

Flintlock

U.S. Military Flintlock Musket Mainspring

Also called main spring, Mainsprings.

Looking to buy? Ordering is not open on this new site yet. Parts can be bought today: Shop parts for the U.S. Military Flintlock Musket at Butch’s current store (opens Butch’s current store in a new tab).

Drives the cock forward.

The reference

Documented on this arm

  • U.S. Military Flintlock Musket Parts Mainspring

Interchange

What a U.S. Military Flintlock Musket mainspring 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

Available now (1)

1 listed · 0 sold

All U.S. Military Flintlock Musket parts · Mainspring across every arm · The flintlock era