GunsAmerica

Quick Look

The Gen 4 Glock line, introduced in 2010, updated Glock’s proven platform with modular features. Designed for improved ergonomics and adaptability, Gen 4 models appeal to professionals and civilians alike. Today, they remain widely available on the used market and popular among Glock enthusiasts.

Why It's a Top Choice

Modular backstrap system for custom grip fit
Dual recoil spring reduces felt recoil
Rough Textured Frame (RTF) enhances grip traction
Large aftermarket support across holsters and parts
Widely adopted by law enforcement worldwide

Key Variants

Glock 17 Gen 4

Full-size 9mm model, ideal for duty carry, training, and home defense use.

Glock 19 Gen 4

Compact 9mm option balancing concealability and shootability—popular for CCW.

Glock 22 Gen 4

Chambered in .40 S&W, widely issued among police departments.

Glock 26 Gen 4

Subcompact 9mm designed for deep concealment and backup roles.

Glock 21 Gen 4

Full-size .45 ACP format for those preferring a heavier caliber.

Competitor Comparison Table

Feature	Gen 4 Glock	Smith & Wesson M&P 9 M2.0	Sig Sauer P320
MSRP	$550	$600	$650
Capacity	15-17 rounds	15-17 rounds	15-17 rounds
Weight	~23 oz (G19 Gen 4)	~25 oz	~26 oz
Optics-Ready	No (except MOS models)	Some variants	Yes
Trigger Type	Striker-fired (~5.5 lb)	Striker-fired	Modular striker-fired
Notable Pro	Legendary reliability and ease of use	Excellent ergonomics and grip texture	Fully modular fire control group
Notable Con	No optics cut unless MOS	Heavier recoil feel	Bulkier than similar-sized pistols

Best Use Cases

Concealed carry with G19 or G26
Duty or service firearm (G17, G22)
Home defense with full-size frame
Training and range practice
Firearms collection completeness

FAQs

What is the difference between Gen 4 and Gen 5 Glock pistols?

Gen 5 models removed finger grooves, updated internals, and often come optics-ready. Gen 4 retains grooves and earlier internals.

Can I use Gen 3 Glock magazines in a Gen 4 pistol?

Yes, Gen 3 mags work in Gen 4 Glocks unless you've reversed the mag release.

How does the dual recoil spring in Gen 4 models benefit shooting?

It helps reduce felt recoil and improve longevity, especially in compact models like the Glock 19 Gen 4.

GEN 4 GLOCK ALL for Sale