Here is a new one if you want it. From the number sold, the seller must be making them. CVA rifles had V springs initially and later they were changed to U springs. This may or may not fit your lock.
CVA Pistol, Rifle, Flintlock & Percussion (Later Style) Sear Spring "U" Shaped | eBay
It has a "U" shape.These were used on everything from percussion to flintlocks to shotguns, rifles and pistols. You might not receive the item pictured, although yours will be identical. NOTE: This part goes on a muzzleloader, blackpowder gun.
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