Dear Jimmy,

Thank you for the additional images and your patience.

The presented object appears to be a French Charleville musket with a flintlock lock. The lock is stamped by the manufacturer "De Culle" and the stock is stamped with EF which stands for "Empire Francaise". This rifle was the standard rifle for the infantry.
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 1.000 to 2.000 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
Georg