Glock 21: Buy Now or Wait?
Verdict based on 3 tracked used / trade-in r/gundeals deals. New-condition deals are too infrequent to price reliably, so this verdict describes the used / trade-in market. Deals in other conditions are tracked separately and are not averaged in.
Built from GunDealAlerts’ own price record — 12,504 tracked prices across 1,919 products from 891 retailers since 2024.
The last tracked Glock 21 deal was $349 on Dec 24, 2025. The lowest ever tracked is $300 on Aug 15, 2025.
Verdict thresholds
Reality check
5 cheapest tracked Glock 21 deals
| Price | Deal | Dealer | Date |
|---|---|---|---|
| $300 | [Handgun] Glock 21 Gen4 Police Trade-ins starting at $299.99… | sportsmansoutdoorsuperstore.com | Aug 15, 2025 |
| $330 | [Handgun] Glock 21 Gen4 45ACP LE Trade In 2-13rd Magazines V… | letradeins.com | Aug 06, 2025 |
| $349 | [Pistol] LE Trade in Glock 21 Gen 4 - 45ACP. $349 - Free shi… | shop.gunsnh.com | Dec 24, 2025 |
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Set free price alert →Frequently Asked Questions
Should I buy a Glock 21 now?
Buy if it's below $300. Below $300 is a steal. Above $349, set a free alert and wait.
What's the lowest a Glock 21 has ever been?
$300, tracked Aug 15, 2025 — verified across 3 tracked r/gundeals posts. That is the record low, not today’s price.
What price should I set my Glock 21 alert at?
$300 for the best signal-to-noise. Lower ($300) means fewer alerts but every one is a steal.
