Firearms

Glock G21 Gen4 .45 ACP 4.61-inch

Schematic

Open full size ↗

Specifications

About

Notable Variants

Aftermarket Ecosystem

Historically Significant Examples

Serial Number Data

Production data from factory records and collector research. Year ranges are approximate for pre-1968 firearms.

Years	Serial Range	Count	Factory	Country	Confidence

Full-size .45 ACP Gen4 G21. The standard-bearer for polymer .45 ACP pistols. 13+1 capacity, Gen4 modular grip, dual recoil spring. Adopted by multiple law enforcement agencies requiring .45 ACP.

Type: Semi-Auto Pistol

Action: Striker-Fired

Caliber: .45 ACP

Capacity: 13

Year introduced: 2013, Austria

Weight: 29.28 oz

Overall length: 7.59"

Status: Active

Intended use: Service, Law Enforcement