Approximately 20% extra power over the factory spring for smoother, more reliable feeding. Longer than factory spring; cut to fit most magazine tubes. In addition, .38-.40 will also fit many .30/30 and .32 Special rifles, .44-40 will also fit many heavy .45 caliber rifles, inlcuding .45/70 and .45/90.
Omtrent 20% ekstra kraft sammenlignet med fabrikkfjæren for jevnere og mer pålitelig mating. Lengre enn fabrikkfjæren; kan kuttes for å passe de fleste magasintuber. I tillegg vil .38-.40 også passe mange .30/30 og .32 Special rifler, .44-40 vil også passe mange tunge .45 kaliber rifler, inkludert .45/70 og .45/90.