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Glock G21 Gen4 vs Glock G17 Gen4

Glock G21 Gen4

Striker-Fired Full-Sized Pistol Chambered in 45 ACP

Glock G17 Gen4

Striker-Fired Full-Sized Pistol Chambered in 9mm Luger


  Length L Height H Width W Weight W
G21 Gen4 8.07 in 5.51 in 1.34 in 29.28 oz
G17 Gen4 7.95 in 5.47 in 1.26 in 25.06 oz


  Barrel BBL Trigger Website
G21 Gen4 4.61 in Striker-Fired us.glock.com
G17 Gen4 4.48 in Striker-Fired us.glock.com


  45 ACP 9mm Luger
G21 Gen4 13 (+1) -
G17 Gen4 - 17 (+1)

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