1.0 M&P 9mm/40 Sear Housing Assembly
Smith & Wesson
$37.99
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Smith & Wesson
1.0 M&P 9mm/40 Sear Housing Assembly
This factory original sear housing block assembly is designed for the M&P 9 and 40 Compact or Standard pistol model chambered in either 9mm or .40 S&W. These assemblies include the sear housing block, sear, sear deactivation lever, ejector, pins and springs.
One noticeable difference is that the sear return spring went from 1/16" diameter to 1/8" diameter in October 2010, so you may need a new sear spring depending on the age of the sear housing you are replacing
