Price history at MidwayUSA
Recorded at MidwayUSA since Oct 9, 2026: low $4.99 (Oct 9, 2026), high $5.11 (Oct 11, 2026). Last checked Nov 1, 2026.
From the store's product feed and AvantLink's price records; feeds can lag the store's own site.
Product Description
The ISMI Increased Power Trigger Return Spring for Sig Sauer P320. 10% increased strength compared to the stock trigger return spring.