This is a direct-replacement extractor pin set for S&W M&P and M2.0 pistols. It solves the problem of lost or damaged factory pins during extractor removal for cleaning or maintenance. S&W recommends replacing this pin each time it is removed — these pins serve as a cost-effective, in-stock alternative to sourcing OEM parts. There is nothing functionally special about this pin; it is a drop-in replacement part.
Compatibility
- S&W M&P 9mm / .40 / .357 (all generations)
- S&W M&P M2.0 9mm / .40 / .45
- S&W M&P Shield (9mm / .40 / .45)
- S&W M&P Shield M2.0 (9mm / .40)
- S&W M&P Compact / Full-size / C.O.R.E.
- Does NOT fit M&P 22 / M&P 15-22 / SD9 / SD40 / Sigma series
Key Features
- Steel construction, same dimensions as factory extractor pin
- Includes two (2) pins per set — one for install, one spare
- No modification or fitting required
- Replaces S&W part number 394-000-166
- Sold as replacement/maintenance parts only
Install Difficulty: 2 / 5
Tools needed: 1/16″ punch, small hammer or mallet, slave pin (optional). Remove slide, depress extractor spring, drive out old pin from top down. Drive new pin from bottom up until flush. Do not reuse the old pin.
FAQ
Is this the same as the factory pin?
Yes, dimensionally identical. No performance difference. This is a straight replacement for lost or damaged factory pins.
How many pins come in this set?
Two pins. One for immediate use, one backup for the next cleaning cycle.
Do I need to replace the pin every time I remove the extractor?
Per S&W factory recommendation, yes. Reusing the original pin can lead to bending or failure during reinstallation. These pins are cheap insurance.
Ships same business day if ordered by 2 PM ET. Includes standard 1-year warranty against manufacturing defects. No returns on installed pins.
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