Handgun comparison iconHandgun comparison icon

Glock G21 Gen4 vs Glock G40 Gen4 MOS

Glock G21 Gen4 facing right

Glock G21 Gen4

Striker-Fired Full-Sized Pistol Chambered in 45 ACP
vs
Glock G40 Gen4 MOS facing left

Glock G40 Gen4 MOS

Striker-Fired Competition Pistol Chambered in 10mm Auto

Dimensions

 LengthLHeightHWidthWWeightW
G21 Gen48.07 in5.51 in1.34 in29.28 oz
G40 Gen4 MOS9.49 in5.47 in1.34 in35.45 oz

Details

 BarrelBBL Trigger Website
G21 Gen44.61 in Striker-Fired us.glock.com
G40 Gen4 MOS6.02 in Striker-Fired us.glock.com

Capacity

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Tabletop
Tabletop Comparison

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Handguns
Glock G21 Gen4
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Glock G40 Gen4 MOS
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G21 Gen4
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Glock
G40 Gen4 MOS