2011 Mainspring Housing - Flat, Checkered, Stainless

Fusion Pro-Series Stainless steel 2011 style Mainspring Housing, Standard for STI 2011 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,.  No MiM, No Cast, ALL Solid CNC Machined Bar-Stock.