Tripp Research Inc. replacement magazine spring are design to give your TRI magazines increased lifespan over traditional magazine springs. Our custom design springs are made from Chrome Silicon material and have a .042 wire diameter.
The following will help you choose the correct replacement spring for your TRI Cobra 1911 magazines.
TRI Magazine Model Spring Chart:
• TRMS 12C/.042 is used in: 7R-45-WO, 9R-38s-RO, 9R-9mm-RO, 10R-9MM-RG, 10R-9MM-RO
• TRMS 13C/.042 is used in: 7R-45-RO, 9R-10mm-RG, 9R-10MM-RO, 9R-40SW-RG, 9R-40SW-RO, 10R-38S-RG, 10R-38S-RO
• TRMS 14C/.042 is used in: 7R-45-WG, 8R-45-RG, 8R-45-RO
• TRMS 15C/.042 is used in: 10R-10MM-RG
This item is Not Eligible for discounts or dealer pricing.