Smith & Wesson SD40 VE Housing Block & Pin .40 S&W - Part# SD40VE4 j651u Verify your model number and

Verify your model number and dash number before ordering — old and new style triggers are not interchangeable

Smith & Wesson Model 908 (9mm)

K-Frame parts may vary across production years

Part #3345U2

Smith & Wesson SD40 VE Housing Block & Pin .40 S&W - Part# SD40VE4 j651u Verify your model number andSmith & Wesson SD40 VE Housing Block & Pin Part# SD40VE4 . 40 S&W Used Part The housing block (also called the fire control housing or trigger housing) is the frame mounted chassis that contains and retains the fire control components of the SD40 VE including the trigger, sear, and related internals. The retaining pin secures the housing block in place within the frame. A cracked, damaged, or missing housing block or pin can cause fire control