Selected Handgun Detail

Manufacturer
	Smith & Wesson More Info

About the Gun

Flagship of the 4000-series .40 S&W pistols, introduced on January 17, 1990, concurrently with the .40 S&W cartridge itself. It adapted the third-generation 5900-series 9mm design—strengthened in key areas like the frame dust cover, recoil spring support, and slide—to handle the new round, featuring an all-stainless steel construction (frame and slide) for enhanced durability in duty use.

Production

Production ran from 1990 through the early 2000s.

Market value

MSRP at production was around $800. Used examples in good to very good shape currently trade in the $500–$600 range.

Cartridge Specifications
Cartridge:	.40 Smith & Wesson
Alias:	N/A
More Info

Analysis

The Smith & Wesson Model 4006 demonstrates strong reliability in duty and range use, with numerous owner reports and agency histories noting consistent function across thousands of rounds and various ammunition types when properly maintained. The heavy frame effectively reduces felt recoil compared to lighter .40 designs, allowing for controlled follow-up shots, though the overall weight contributes to fatigue during extended carry. Accuracy holds at service distances, supported by the double-action/single-action trigger, which users describe as heavier in double-action mode but crisp in single-action. Maintenance follows third-generation procedures, but parts and magazines have become harder to source over time. In the secondary market, examples—whether with fixed or adjustable sights—trade based on condition, originality, and any law enforcement provenance, with many remaining functional despite holster wear from prior service.