Those were made by Erma- long out of business, and Numrich does not have the recoil spring in stock. 3 options- Tristar was rumored to have picked up the available parts for these pistols, check with them. Wolf Springs may be able to match up a part. Last, a competent pistolsmith can probably find a close replacement- does not appear to be a complex spring.TriStar Arms1816 Linn St.North Kansas City, Missouri 64116(816) 421-1400