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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
Genuine S&W Part: Factory original component
Direct replacement for worn or damaged triggers
22 LR rimfire revolvers only
Inconsistent cylinder timing or alignment with barrel
S&W M&P 9/40 Sear Housing Block Mag Safety | OEM 421970000 Fire Control Parts Genuine S&W Part: Factory originalSmith & Wesson OEM Sear Housing Block Assembly for M&P 9 40 Pistols with Magazine Safety This factory sear housing block assembly with integrated magazine safety is a critical fire control component for M&P9 and M&P40 pistols equipped with magazine disconnect safety. Genuine S&W quality ensures proper fit, reliable function, and safe operation. Genuine S&W Part: Factory OEM component (Part #421970000) Multi Caliber Fit: Compatible with M&P 9mm and .
