Hopkins and Allen 58 caliber black powder rifle trigger spring.

[Thomas Worde]

I need a trigger spring for a 58cal. Hopkins and Allen 58 caliber under hammer black powder rifle.

 

[hawkeye2]

Call Deer Creek and keep watching eBay. BTW move this to this forum, not many folks will see it here.

Percussion Rifles​

https://www.deercreekproducts.net/

 

[2 shots]

better off in " parts wanted"

 

[kelvinator]

Pecatonica sells HA underhammer kits, perhaps they would sell a trigger spring separately.
http://www.longrifles-pr.com/underhammer.shtml

 

[Cyknife]

"https://www.ebay.com/itm/125472811959" this guy has your spring @ 12 bucks.