Glock 20 Gen 3 10mm for sale

(20)

Brand:

Glock

Action:

Double Action

Barrel Length:

4.6in

Caliber:

10mm Auto

Capacity:

10+1

Finish Per Color:

Black

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(0)

Brand:

Glock

Action:

Pistol

Barrel Length:

4.6"

Caliber:

10mm Auto

Capacity:

15

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Marketplace Insights ★ 4.9/5 based on 20 customer reviews across 3 variants from 22 retailers

Overwhelmingly praised as a reliable, powerful 10mm hunting and defense pistol with excellent ergonomics, though one retailer received criticism for poor customer service.

What customers like

Reliability & Quality45%
It's a Glock. It goes big boom everytime you pull the trigger.
Powerful 10mm Caliber60%
The 10mm brings magnum revolver power to the auto pistol game.
Slim Frame Ergonomics40%
The SF (slim frame) helps on the grip though.
Hunting & Defense Use35%
On the hunt, this is the pistol to have at your side
Customer Service15%
Sportsman's made it easy with online purchase and in store pick up.

Common concerns

Customer Service Issues5%
Waited 20+ minutes on the phone multiple times for customer service.
OEM Barrel Limitations5%
the OEM barrel is not rated to send high pressure rounds
Frequently Asked Questions
Glock 20 Gen 3 10mm for sale

Is there a Gen 3 Glock 20?

Yes. Glock produced a Gen 3 G20 and G20SF (Short Frame). The G20SF, introduced in 2009, features a reduced grip circumference while maintaining full-size dimensions. Both have been available in Gen 3, typically priced around $570.

Which gen Glock 20 is best?

The Gen 5 is the most refined, offering a better trigger, improved ergonomics, and optics-ready capability via the Gen 5 MOS variant. Gen 4 improved grip texture and introduced modular backstraps. Gen 3 is reliable and cheaper. For most buyers, Gen 5 is worth the premium; Gen 3 suits budget-conscious shooters.

What mags can a Glock 20 take?

Glock 20 magazines hold 15 rounds of 10mm Auto. They're interchangeable with Glock 40 and Glock 40 MOS magazines, as all three share the same frame size. Extended aftermarket magazines are also available, typically offering 20 or more rounds.

Is Glock Gen 3 still good?

Gen 3 Glocks remain reliable and widely used. They lack some refinements found in newer generations, such as improved ergonomics and front serrations, but accuracy and dependability are comparable. Many shooters still prefer them, and parts remain widely available.

Is a Glock 20 worth it?

Worth depends on your needs. The Glock 20 runs around $620, chambered in 10mm Auto—a powerful round suited for hunting and bear defense. It holds 15 rounds, has a reliable striker-fired action, and is full-size. Recoil is substantial. For 10mm in a proven platform, it delivers.

Is the Glock 20 good for hunting?

Yes. The Glock 20 chambered in 10mm Auto delivers enough power for medium game like deer within 50–60 yards. Its 15-round capacity and reliable operation make it practical in the field. Use quality hunting loads such as Underwood or Buffalo Bore for best terminal performance. Retails around $570.

How much is a Glock 20 good price?

A good price for a Glock 20 is around $650 new. Most listings range from $538 to $804 depending on generation and condition. Available generations include Gen 3, Gen 4, and the SF variant — there is no Gen 5. Compare current prices across multiple retailers before buying.

Is the Glock 20 SF discontinued?

No, but changes are coming. The Glock 20 SF (Short Frame) has been discontinued. The Glock 20 Gen4 is also being discontinued by November 30, 2025. There is no confirmed Gen 5 Glock 20. Current Glock 20 models retail around $570 on our marketplace.

What is the difference between the Glock 20 and the Glock 20 SF?

Both fire 10mm Auto, but the 20SF has a reduced grip circumference for smaller hands. Functionally identical otherwise—same capacity, same power, same action. Choice comes down to hand size and comfort during extended shooting.

Is the Glock 20 Gen 3 reliable?

Yes. The Glock 20 Gen 3 consistently earns high reliability ratings from reviewers and owners. Its striker-fired action functions dependably across thousands of rounds. As a full-size 10mm pistol, it handles significant recoil well and performs reliably for hunting, defense, and bear protection.

What weight are the recoil springs on a Glock 20 Gen 3?

Stock Glock 20 Gen 3 uses a 17-pound recoil spring. Many shooters upgrade to 20-pound or heavier springs when running full-power 10mm loads, while lighter loads may function better with the stock spring. Aftermarket options are widely available from companies like Wolff and ISMI.

Is the Glock 20 easy to conceal carry?

Concealing a Glock 20 is challenging due to its full-size frame, 8.07-inch length, and 30.69-ounce weight. It's possible with the right holster and sturdy belt, depending on your body type, clothing, and carry position. Most people use it for backcountry carry rather than everyday concealed carry.

Is the Glock 20 gen 4 or gen 5 better?

Gen 5 offers improved grip texture, no finger grooves, a refined trigger, larger mag release, and beveled magwell. Gen 4 has modular backstraps and costs less. For most shooters, Gen 5's refinements are worth the price difference, but Gen 4 remains a reliable, budget-friendly option.