Officers -Mainspring Housing (Checkered)
Thunder Mountain Custom’s Checkered Mainspring Housings are fully machined from solid barstock steel. The detailed checkering is machine cut into each housing at 25 Lines per Inch, with expert precision then finished by hand. The Flat Housing is the standard 1911 design for the clean, classic look. Drop-in fit will work with virtually any 1911 style handgun.
The Officer’s Model housing features drop-in installation in all Officer’s size 1911 from Kimber, STI, Colt and Springfield, just to name a few.
Available in both a blued finish or Stainless Steel