SPRING KIT S&W J FRAME CUSTOM TUNE Manufacturer Model Number: 321 Manufacturer: Wilson Combat Model: S&W Revolver Spring Kit Type: Accessory-Kits Item Type: Accessory Shipping Weight: 0.05 Feature: Fits J Frame S&W Revolvers Feature: Custom Tune Optic Adjustable Objective: false Optic Reticle Illuminated: false