How much is a Glock 21?

The average asked price for a used Glock 21 is $700. GunList found 12 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 Glock 21 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 Glock 21 median, consider $560 to attract buyers faster, $700 for a balanced asking price, or $875 if you are willing to wait. These options are 20% below, equal to, and 25% above the filtered market median.

Comparable used Glock 21 asking prices range from $400 to $850 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 Glock 21. 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 Glock 21 data, average asking prices range from $400 in Texas to $950 in California. Availability, local demand, and small sample sizes can cause regional differences.

A Glock 21'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.