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Smith & Wesson M&P Sear Housing Block 9mm/.357 Sig/.40 - Part 390910000

Smith & Wesson M&P Sear Housing Block 9mm/.357 Sig/.40 - Part 390910000

$36.99

Smith & Wesson M&P Sear Housing Block

Genuine Smith & Wesson factory sear housing block designed for M&P and M&P Compact pistols. This OEM part ensures reliable trigger function and proper sear engagement.

What's Included:

  • 1 sear housing block (without internal lock)
  • Factory new condition
  • Genuine S&W OEM part

Compatibility:

  • Models: M&P and M&P Compact
  • Calibers: 9mm, .357 Sig, .40 S&W
  • Important: This version WITHOUT internal lock will ONLY fit models WITH thumb safety

Important Note:

This sear housing block without internal lock will ONLY fit models with the thumb safety. If used with a model without the thumb safety, the sear housing block will hit the frame plugs and will not function properly.

Why Choose OEM Parts:

Factory parts ensure proper fit and reliable function. The sear housing block is a critical component for safe and consistent trigger operation.

Part Number: 390910000

Based on the product listing for the Smith & Wesson M&P Sear Housing Block (Part 390910000), here are the details regarding the parts included and their specific compatibility requirements:

Included Components

  • Sear Housing Block: A single, genuine S&W OEM factory unit.

  • Condition: Factory new.

  • Internal Configuration: This is the version without an internal lock.

Compatibility & Fitment

This specific part is not a universal fit for all M&P models. Note the following requirements:

  • Models: Fits M&P and M&P Compact pistols.

  • Calibers: Compatible with 9mm, .357 Sig, and .40 S&W.

  • Safety Requirement: This part will ONLY fit models equipped with a manual thumb safety.

Warning: If you attempt to install this in a model without a thumb safety, the block will hit the frame plugs and fail to function properly.

Technical Summary

Attribute Detail
Manufacturer Smith & Wesson
Part Number 390910000
Type Fire Control Part
Price $36.99
Weight 1.5 oz

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