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Glock 21 for Sale

Founded: 1963

HQ: Austria

The Glock 21 is a full-size, striker-fired semi-automatic pistol with a polymer frame and Safe Action system, chambered in .45 ACP. Its standout feature is a double-stack 13-round .45 ACP capacity. Over 131 Glock 21 auctions have run on FirearmLand.

Glock 21 Auctions

5 active auctions ending soon

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5

Glock 21 Gen3 SF G21 Gen 3 45 ACP 4.6" +THREE MAGS

Glock 21 Gen3 SF G21 Gen 3 45 ACP 4.6" +THREE MAGS

Glock 21 Gen3 SF G21 Gen 3

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" Two-Tone FDE & Silver +ORIG BOX

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" Two-Tone FDE & Silver +ORIG BOX

Glock 21 Gen4 G21 Gen 4

Glock 21 Gen3 SF Optics-Ready G21 Gen 3 45 ACP 4.61 +2 MAGS & HOLSTER

Glock 21 Gen3 SF Optics-Ready G21 Gen 3 45 ACP 4.61 +2 MAGS & HOLSTER

Glock 21 Gen3 SF G21 Gen 3

Recently Sold

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.60 Two-Tone FDE +3 MAGS & ORIG CASE

Sold On 08/25/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.60 Two-Tone FDE +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Sold On 08/19/2026

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61 FDE +3 MAGS & ORIG CASE

Sold On 08/19/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61 FDE +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5

Glock 21 Gen2 G21 Gen 2 45 ACP FRAME

Sold On 08/19/2026

Glock 21 Gen2 G21 Gen 2 45 ACP FRAME

Glock 21 Gen2 G21 Gen 2 Serialized Frame

Glock 21 Gen3 G21 Gen 3 45 ACP 4.61"

Sold On 08/19/2026

Glock 21 Gen3 G21 Gen 3 45 ACP 4.61"

Glock 21 Gen3 G21 Gen 3

Glock 21 Gen2 G21 Gen 2 45 ACP 4.61 +5 MAGS, ORIG CASE

Sold On 08/18/2026

Glock 21 Gen2 G21 Gen 2 45 ACP 4.61 +5 MAGS, ORIG CASE

Glock 21 Gen2 G21 Gen 2

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61 +3 MAGS & ORIG CASE

Sold On 07/31/2026

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61 +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4

Glock 21 Gen3 G21 Gen 3 45 ACP 4.60" Silver +2 MAGS & ORIG CASE

Sold On 07/24/2026

Glock 21 Gen3 G21 Gen 3 45 ACP 4.60" Silver +2 MAGS & ORIG CASE

Glock 21 Gen3 G21 Gen 3 ZEV Flat-Face Trigger

Glock 21C Gen3 G21 Gen 3 21-C 45 ACP 4.6" INTEGRAL TWO PORT +ORIG CASE

Sold On 07/15/2026

Glock 21C Gen3 G21 Gen 3 21-C 45 ACP 4.6" INTEGRAL TWO PORT +ORIG CASE

Glock 21C Gen3 G21 Gen 3 21-C

Glock 21 Gen3 G21 SF Gen 3 45 ACP 4.6 +4 MAGS & ORIG CASE

Sold On 07/08/2026

Glock 21 Gen3 G21 SF Gen 3 45 ACP 4.6 +4 MAGS & ORIG CASE

Glock 21 Gen3 G21 SF Gen 3

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61 +3 MAGS & ORIG CASE

Sold On 07/06/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61 +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5 Optics-ready

Glock 21 Gen3 SF G21 Gen 3 45 ACP 4.61 Short Frame +2 MAGS & ORIG CASE

Sold On 06/25/2026

Glock 21 Gen3 SF G21 Gen 3 45 ACP 4.61 Short Frame +2 MAGS & ORIG CASE

Glock 21 Gen3 SF G21 Gen 3

Glock 21 Gen4 G21 Gen 4 Gray Frame 45 ACP 4.61 +3 MAGS, ORIG CASE

Sold On 06/17/2026

Glock 21 Gen4 G21 Gen 4 Gray Frame 45 ACP 4.61 +3 MAGS, ORIG CASE

Glock 21 Gen4 G21 Gen 4

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.5" +FIVE MAGS, ORIG CASE & HOLSTER

Sold On 06/16/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.5" +FIVE MAGS, ORIG CASE & HOLSTER

Glock 21 Gen5 MOS G21 Gen 5 Blade-Tech Kydex

Glock 21 Gen5 G21 Gen 5 MOS 45 ACP 4.49" +3 MAGS & ORIG CASE

Sold On 06/15/2026

Glock 21 Gen5 G21 Gen 5 MOS 45 ACP 4.49" +3 MAGS & ORIG CASE

Glock 21 Gen5 G21 Gen 5

Glock 21 Gen2 G21 Gen 2 45 ACP 4.6"

Sold On 06/12/2026

Glock 21 Gen2 G21 Gen 2 45 ACP 4.6"

Glock 21 Gen2 G21 Gen 2 45ACP

Glock 21 SF Gen3 G21 Gen 3 G21SF 45 ACP 4.6" Short Frame

Sold On 06/04/2026

Glock 21 SF Gen3 G21 Gen 3 G21SF 45 ACP 4.6" Short Frame

Glock 21 SF Gen3 G21 Gen 3 G21SF 21SF

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Sold On 06/02/2026

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4 45ACP

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Glock 21 Gen4 G21 Gen 4 45 ACP Optics-Ready THREADED +2 MAGS & ORIG BOX

Sold On 06/01/2026

Glock 21 Gen4 G21 Gen 4 45 ACP Optics-Ready THREADED +2 MAGS & ORIG BOX

Glock 21 Gen4 G21 Gen 4 45ACP

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61 +FOUR MAGS, ORIG CASE

Sold On 05/29/2026

Glock 21 Gen4 G21 Gen 4 45 ACP 4.61 +FOUR MAGS, ORIG CASE

Glock 21 Gen4 G21 Gen 4 45ACP

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.02" +2 MAGS & ORIG CASE

Sold On 05/20/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.02" +2 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61" +3 MAGS & ORIG CASE

Sold On 04/15/2026

Glock 21 Gen5 MOS G21 Gen 5 45 ACP 4.61" +3 MAGS & ORIG CASE

Glock 21 Gen5 MOS G21 Gen 5 45ACP Optic-Ready

Glock 21 SF Gen 3 45 ACP 4.61" G21 21SF +4 MAGS & ORIG CASE

Sold On 04/15/2026

Glock 21 SF Gen 3 45 ACP 4.61" G21 21SF +4 MAGS & ORIG CASE

Glock 21 SF Gen 3 45ACP G21 Gen3

Glock 21 Gen4 45 ACP 4.61" G21 Gen 4 Duty-Carry +3 MAGS & ORIG CASE

Sold On 04/10/2026

Glock 21 Gen4 45 ACP 4.61" G21 Gen 4 Duty-Carry +3 MAGS & ORIG CASE

Glock 21 Gen4 45ACP G21 Home Defense

Glock 21 Gen4 45 ACP 5" G21 Gen-4 +3 MAGS & ORIG CASE

Sold On 04/01/2026

Glock 21 Gen4 45 ACP 5" G21 Gen-4 +3 MAGS & ORIG CASE

Glock 21 Gen4 45ACP G21 Gen-4 Threaded Barrel

Glock 21 SF Gen3 45 ACP G21 G21SF 21SF Gen-3 +2 MAGS & ORIG CASE

Sold On 03/23/2026

Glock 21 SF Gen3 45 ACP G21 G21SF 21SF Gen-3 +2 MAGS & ORIG CASE

Glock 21 SF Gen 3 45ACP G21 Gen3

Glock 21 Generation 2 (Transitional Gen 2.5) 45-ACP 4.6" Two-Tone Stainless

Sold On 03/16/2026

Glock 21 Generation 2 (Transitional Gen 2.5) 45-ACP 4.6" Two-Tone Stainless

Glock 21 45ACP G21 Gen2 Duty-Carry Threaded

Glock 21 Gen3 45-ACP 4.6" G21 Gen-3

Sold On 03/16/2026

Glock 21 Gen3 45-ACP 4.6" G21 Gen-3

Glock 21 Gen3 45ACP G21 Gen-3 Full Size Duty-Carry

Glock 21 Gen4 45 ACP 4.61" G21 Gen-4 Pistol +CTC Green Laser & ORIG CASE

Sold On 03/13/2026

Glock 21 Gen4 45 ACP 4.61" G21 Gen-4 Pistol +CTC Green Laser & ORIG CASE

Glock 21 Gen4 G21 Gen 4 Home Defense Duty-Cary

Glock G21 Gen4 45 ACP 4.61 Gen 4 G 21

Sold On 03/11/2026

Glock G21 Gen4 45 ACP 4.61 Gen 4 G 21

Glock G21 Gen4 Gen 4 45ACP G 21

Glock 21 Gen4 45-ACP 4.61" G21 Gen-4 +3 MAGS & ORIG CASE

Sold On 03/09/2026

Glock 21 Gen4 45-ACP 4.61" G21 Gen-4 +3 MAGS & ORIG CASE

Glock 21 Gen4 45ACP G21 Gen-4 +WEAPON LIGHT

Glock 21 SF Gen3 45 ACP G21 Gen-3 +3MAGS

Sold On 03/04/2026

Glock 21 SF Gen3 45 ACP G21 Gen-3 +3MAGS

Glock 21 G21 Gen3 Gen-3 45ACP

Glock 21 Gen4 45 ACP G21 Gen 4 +3 MAGS & ORIG CASE

Sold On 02/23/2026

Glock 21 Gen4 45 ACP G21 Gen 4 +3 MAGS & ORIG CASE

Glock 21 Gen4 G21 Gen 4 45ACP

Glock 21 Gen3 45 ACP 4.61" G21 G Gen 3" +3MAGS

Sold On 02/13/2026

Glock 21 Gen3 45 ACP 4.61" G21 G Gen 3" +3MAGS

Glock 21 Gen3 G21 G Gen 3 45ACP

Glock G21 Gen4 45 ACP 4.61 Gen 4 G 21 +ORIG CASE

Sold On 02/11/2026

Glock G21 Gen4 45 ACP 4.61 Gen 4 G 21 +ORIG CASE

Glock G21 Gen4 Gen 4 45ACP G 21

Glock 21 SF Short Frame G21 Gen 3 45 ACP 4.61" Pistol +6MAGS & ORIG CASE

Sold On 02/04/2026

Glock 21 SF Short Frame G21 Gen 3 45 ACP 4.61" Pistol +6MAGS & ORIG CASE

Glock 21 G21 Gen 3 45ACP 21SF G21SF Duty Carry

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