Glock 21 Gen 4 VS Glock 21SF

Head to Head Comparison

Glock 21 Gen 4

85%

Critic Rating

7 Reviews

Critic Rating

7 Reviews

98%

User Rating

47 Reviews

User Rating

47 Reviews

Glock 21SF

85%

Critic Rating

3 Reviews

Critic Rating

3 Reviews

100%

User Rating

13 Reviews

User Rating

13 Reviews

50 MOA

Accuracy

50 MOA

5.67 Yeets

Damage

5.67 Yeets

10-50 yards

Range

10-50 yards

N/A

Recoil Velocity

N/A

10+1 rounds

Capacity

13+1 rounds

1989

Mobility

N/A

Ergonomics

Fit & Finish

Reliability

MSRP:

$438.29

Used Price:

$438.29

New Price:

$486.99

MSRP:

$497.25

Used Price:

$497.25

New Price:

$552.50

Gun Specifications

Specifications

Glock 21 Gen 4

Glock 21SF

Weight

26 oz

Length

6.97"

Action

Safe Action

Caliber

.45 ACP

Capacity

10+1

13+1

Finish

Black

Gun Type

Pistol

Sights

Fixed

Grip

Black

Barrel Length

4.60"

4.9"

Height

5.47

Width

1.35 Inches

Gun Stats

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Glock 21 Gen 4

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Glock 21SF

Guns.com

$522.13

See Deal

EuroOptic.com

$522.13

See Deal

MidwayUSA

$498.94

See Deal

GrabAGun

$524.99

See Deal

Sportsman's Warehouse

$522.13

See Deal

Cheaper Than Dirt

$522.13

See Deal

Brownells.com

$359.00

See Deal

KYGUNCO

$397.04

See Deal

Guns.com

$522.13

See Deal

Academy Sports + Outdoors

$522.13

See Deal

Firearms Depot

$522.13

See Deal

Optics Planet

$522.13

See Deal

Gun Descriptions

Glock 21 Gen 4

Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the legendary stopping power of the .45 AUTO round with 10 round magazine capacity. The Modular Back Strap design on the G21 Gen4 lets you instantly customize its grip to adapt to an individual shooter's hand size. The surface of the frame employs the new scientifically designed, real-world-tested, Gen4 rough textured technology. Internally, the new GLOCK dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch, changeable in seconds, accommodates left or right-handed operators. The Gen4 system is the perfect complement to this iconic .45 caliber cartridge.

Glock 21SF

Remarkable for its accuracy and light recoil, the GLOCK 21SF delivers the legendary stopping power of the .45 AUTO round with 10/13 round magazine capacity. Countless law enforcement units swear by the G21SF pistol, and that's why this powerful, lightweight, all climate workhorse is standard issue from the North to South Poles. The SF model reduces the circumference of the receiver at the rear, or "back strap," offering increased comfort and controlespecially for shooters with smaller hands. This model features a threaded barrel.

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