• Screenshot 2026-03-12 at 12-19-18 GLOCK Perfection G21 Gen4
  • Screenshot 2026-03-12 at 12-19-33 GLOCK Perfection G21 Gen4
  • Screenshot 2026-03-12 at 12-18-39 GLOCK Perfection G21 Gen4

GLOCK G21 .45 ACP

Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the power of the 45 Auto round with high magazine capacity. The Modular Beavertail Backstrap System makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters The Gen4 system is the perfect complement to the 45 Auto caliber cartridge.

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Description
Caliber

45 Auto

System

Safe Action®

Mag. Capacity

Standard: 13

Optional: 10

Barrel Length

117 mm | 4.61 inch

Weight

without magazine

745 g | 26.28 oz

Weight

with empty magazine

830 g | 29.28 oz

Weight

with loaded magazine**

1100 g | 38.80 oz

Trigger Pull***

28 N

 

1 LENGTH (OVERALL)* 205 mm | 8.07 inch
2 SLIDE LENGTH 193 mm | 7.60 inch
3 WIDTH (OVERALL) 34 mm | 1.34 inch
4 SLIDE WIDTH 28,5 mm | 1.12 inch
5 HEIGHT INCL. MAG. 140 mm | 5.51 inch
6 Sight Radius POLYMER 172 mm | 6.77 inch
Sight Radius STEEL 171 mm | 6.73 inch
Sight Radius GNS 170 mm | 6.69 inch
7 TRIGGER DISTANCE* 72,5 mm | 2.85 inch