How much is a SIG Sauer M400?

The average asked price for a used SIG Sauer M400 is $850. GunList found 6 current pre-owned listings; customized, collectible, trade-only, accessory-heavy, and unusually priced listings are filtered before the median is calculated. Pricing data was last updated in October 2026.

There are not currently enough new SIG Sauer M400 listings to calculate a reliable average asking price. New-in-box condition, generation, and factory configuration can also affect the price.

Based on the filtered used SIG Sauer M400 median, consider $680 to attract buyers faster, $850 for a balanced asking price, or $1,065 if you are willing to wait. These options are 20% below, equal to, and 25% above the filtered market median.

Comparable used SIG Sauer M400 asking prices range from $700 to $1,500 after customized, collectible, trade-only, and statistical outliers are filtered. Accessory-heavy listings are also removed when enough comparable data remains.

GunList analyzes marketplace listings explicitly linked to the SIG Sauer M400. When fewer than five current priced listings are available, archived and sold listings are also included. Zero-price, customized, collectible, and trade-only listings are excluded. Accessory-heavy bundles are removed when enough comparable listings remain, then unusually low and high prices are filtered. The reported used value is the median asking price, not a completed-sale price or formal appraisal.

Yes. Among states with SIG Sauer M400 data, average asking prices range from $700 in Arizona to $1,500 in Texas. Availability, local demand, and small sample sizes can cause regional differences.

A SIG Sauer M400's value can change with condition, generation, finish, round count, factory configuration, modifications, included optics or magazines, original box and paperwork, provenance, and local demand. Customized or accessory-heavy examples may sell outside the comparable price range shown here.