If you want a used Glock, the problem is never whether one exists. The problem is finding the exact model, generation, and caliber you want, in decent condition, at a fair price, today. Local shops carry whatever walked in last week. Online inventory gives you hundreds of used Glocks to compare side by side, including police trade-ins you will almost never see in a display case.
Check Current Used Glock Inventory at Guns.com
Why Buy a Used Glock Instead of New?
Glocks are one of the safest used handgun purchases you can make. The design is simple, the parts are cheap and widely available, and the pistols are famously overbuilt. A Glock with 10,000 rounds through it typically shoots the same as one with 500.
Here is what you actually gain buying used:
- Lower price. Used Glocks routinely sell for $100 to $200 below new retail, and police trade-ins can go lower.
- Night sights included. Many trade-ins ship with factory or Trijicon night sights already installed, an upgrade that costs $100+ on a new gun.
- Extra magazines. Duty guns often come with two or three mags instead of the standard pair.
- Discontinued models. Gen 3 pistols, certain calibers, and older configurations only exist on the used market.
- No break-in anxiety. Someone else already put the first thousand rounds through it. If there was a problem, it surfaced long ago.
Looking for a specific generation or caliber right now? Browse current used Glock listings and filter by model.
What Are Police Trade-In Glocks?
Police trade-ins are duty pistols that departments sell back to distributors when they upgrade to newer generations or switch platforms. They are the best value in the used Glock market for one simple reason: cops carry their guns constantly and shoot them rarely.
A typical trade-in shows holster wear on the finish, especially along the slide and muzzle, but has low round counts and a well-maintained interior. Departments also armorer-inspect their pistols on a schedule, which is more maintenance than most privately owned guns ever see.
Common trade-in models include the Glock 17, Glock 22 in .40 S&W, and Glock 23. The .40 caliber trade-ins are often the cheapest Glocks on the market because departments moved back to 9mm in large numbers, flooding supply.
Shopping police trade-in Glocks specifically? Compare available trade-in inventory here.
Which Used Glock Models Should You Look For?
Used Glock 19
The most popular handgun in America for a reason. Compact enough to carry, big enough to shoot well. Used Gen 3 and Gen 4 models are plentiful and priced well below new Gen 5s. If you only buy one Glock, this is it.
Used Glock 17
The full-size original. Trade-in 17s are everywhere because it was the default duty gun for decades. Excellent home defense and range pistol, and often the cheapest 9mm Glock available used.
Used Glock 22 and 23
The .40 S&W duty guns. Trade-in pricing on these is frequently the lowest of any Glock. Bonus: a .40 frame can be converted to 9mm with a conversion barrel and 9mm magazines, giving you a budget two-caliber pistol.
Used Glock 26
The subcompact 9mm. Backup guns for police, carry guns for everyone else. It accepts Glock 19 and 17 magazines, which makes it a flexible second pistol.
Used Glock 43 and 43X
Slim single-stack and stack-and-a-half carry guns. These hold value better than duty models because demand for slim carry 9mms stays high, but used examples still beat new pricing.
Used Glock 45
Full-size grip, compact slide. A newer model, so used supply is thinner, but agencies that adopted it are starting to cycle inventory. Worth checking availability regularly.
Want a lower price than new on any of these? Browse used Glock deals online.
How Do Condition Grades Work When Buying a Used Glock?
Online retailers grade used pistols so you know what you are getting before it ships. Guns.com uses a Certified Used program with published condition standards and photos of the actual firearm, not stock images. Typical grading tiers work like this:
- Excellent: Minimal handling marks, looks close to new.
- Very Good: Light finish wear, fully functional, the sweet spot for value.
- Good: Visible holster wear or scratches, mechanically sound. Most police trade-ins land here.
- Fair: Heavy cosmetic wear. Fine for a range gun or project, priced accordingly.
With Glocks, cosmetic grade matters less than with most pistols. The finish wear that drops a trade-in to “Good” has zero effect on function, and Glock frames and slides are not collectible in a way that rewards pristine finishes. Buy the grade that matches your use, not your ego.
Is It Safe to Buy a Used Glock Online?
Yes, and the process is more regulated than a private face-to-face sale. Every online handgun purchase ships to a licensed FFL dealer in your area, where you complete the standard background check and paperwork before taking possession. You never receive a gun in the mail directly.
The steps:
- Buy the pistol online and select a local FFL transfer dealer at checkout.
- The retailer ships to that dealer.
- You go in, fill out the Form 4473, pass the background check, pay the transfer fee, and leave with your Glock.
Buying from an established retailer also gets you an inspection period and customer service if something arrives wrong, which is more protection than a cash deal at a gun show.
How Much Should a Used Glock Cost?
Prices move with supply, but the pattern holds: used Gen 3 and Gen 4 models and .40 caliber trade-ins sit at the bottom of the price range, while newer generations and slim carry models like the 43X sit closer to new retail. As a rule of thumb, expect to save 20 to 35 percent versus a new pistol, more when a large department trade-in batch hits the market.
Those batches sell fast. When a distributor releases a few hundred trade-in 17s or 22s at a low price, the good-condition examples with night sights go first. That is the real argument for checking online inventory instead of waiting on your local shop: the deals are visible the moment they exist.
See Today’s Used Glock Inventory
Used Glock Buying Checklist
- Used Glocks save you 20 to 35 percent and often include night sights and extra magazines.
- Police trade-ins are carried a lot and shot a little, making them the best value tier.
- Glock 22 and 23 trade-ins in .40 S&W are usually the cheapest entry point, and convert to 9mm easily.
- Condition grades on a Glock describe cosmetics, not reliability. “Good” grade trade-ins shoot like new.
- Every online purchase transfers through a local FFL with a full background check.
- Trade-in batches sell out quickly, so check current inventory rather than waiting on local stock.
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