It all depends on your side. If you are a regular American, try the suggested above. Possibly all flintlock. For the British side, Regular= Brown Bess, Officer: An early form of cap lock. Mind you, the percussion lock was patented in 1807, so a few officers might have had some early form of cap lock.
Well only if the lock looks like this. This is the percussion system patented in 1807. It was called the Forsyth or Scent Bottle lock, and no cap was used.
The cap-lock where the percussion material is in a copper cap placed on a nipple was patented in 1822.
LD