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Checkered Main Spring Housing - Full Size Frames

Extreme Service Checkered Mainspring Housings for Government and Commander size 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 Gov't Models, Commanders and others using a full length frame. Does not fit SVI, STI, etc.

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

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