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Checkered Main Spring Housings - Compact Size Frames

Extreme Service Checkered Mainspring Housings for Officers ACP, Compact and other reduced length frames

Our Extreme Service Mainspring Housings (MSH from here in) are CNC machined from bar stock to consistent dimensional tolerances.

This section lists FLAT MSH for Officers ACP, Compacts, Defenders and others using a shorter length frame. Does not fit Gov't Models or Commanders, etc.

Available in blued carbon steel and stainless steel, offered in 20 or 25 lpi machine cut checkering. 

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