GLOCK 21 GEN5 for Sale

Quick Look

The Glock 21 Gen5 continues the legacy of Glock's .45 ACP pistols, offering modern enhancements for reliability and performance. Engineered with Gen5 updates including the Glock Marksman Barrel and ambidextrous controls, it delivers exceptional accuracy and user-friendly features. A trusted option for .45 ACP fans, the Gen5 is gaining favor among law enforcement and civilian users seeking a large-caliber defensive pistol.

Why It's a Top Choice

Chambered in .45 ACP for stopping power
Gen5 features like flared magwell & DLC-coated barrel
Ambidextrous slide stop lever for left/right-handed use
No finger grooves for better grip fit
Compatible with Gen4/Gen5 compatible Glock accessories

Key Variants

Glock 21 Gen5 MOS

Ideal for users wanting an optics-ready .45 ACP for defensive or duty use.

Glock 21 Gen4

Previous generation with interchangeable backstraps and original grip texture setup.

Glock 21 SF

Slim Frame version offering a shorter trigger reach and improved ergonomics.

Competitor Comparison

Feature	Glock 21 Gen5	Sig Sauer P320 .45	Smith & Wesson M&P45 M2.0
MSRP	$650	$699	$629
Capacity	13+1	10+1, 13+1	10+1, 13+1
Weight	29.3 oz	29.4 oz	27.0 oz
Optics-Ready	MOS option	Yes	Yes
Trigger Type	Safe Action	Striker-fired	Striker-fired
Notable Pro	Proven Glock reliability	Modular fire control group	Enhanced grip texture
Notable Con	Larger grip size	Heavier trigger feel	Longer slide compared to G21

Best Use Cases

Home and personal defense
Law enforcement and duty carry
Range training and target shooting
Large-caliber handgun competitions
Collectors of Gen5 Glock variants

FAQs

What is the magazine capacity of the Glock 21 Gen5?

It comes standard with a 13-round magazine, chambered in .45 ACP.

Can I mount a red dot on the Glock 21 Gen5?

Yes, the MOS version of the Glock 21 Gen5 supports red dot optics via modular plates.

How does the Glock 21 Gen5 differ from Gen4?

Gen5 adds a flared magwell, Glock Marksman Barrel, and ambidextrous slide stop without finger grooves.