1911 Double Stack Steel Mainspring Housing - Flat - Checkered by Fusion Firearms
Fusion Pro-Series Carbon steel 1911 double stack Mainspring Housing, Standard for STI double stack and SVI style pistols. Replaces the Plastic mainspring housing with steel. CNC Machined from bar-Stock, With 25 lpi Checkered back. Matte finished. All CNC machined in the USA.
