What is a Glock 21 worth?

Based on 146 completed auction sales, the Glock 21 has an average market value of $429. Prices range from $100 to $1,325.

Is now a good time to buy a Glock 21?

The Glock 21 market is currently softening (down 2.5% vs 90-day average). Check Gunny's live deals for current scored listings.

Markets/Glock/21

Glock 21

Name: Glock 21
Brand: Glock
Price: 428.9397260273972 USD

Confirmed (423 sales · all variants)High ConfidenceHigh Demand · 100% sell-through

$429market value↓ 2.5%— Stable

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GUNNY VALUATION

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Market Average

$429

90-day avg

30-Day Trend

-2.5%

Softening

Price Range

$100 – $1,325

12-month

Sales Tracked

0

completed sales

PRICE BY VARIANT

Top 4 · 288 sales

Gen 4

$370

160 sales · .45 ACP

Gen 3

$394

61 sales · .45 ACP

SF Gen 3

$392

42 sales · .45 ACP

Gen 2

$386

25 sales · .45 ACP

PRICE BY CONDITION

2 grades · 145 sales

Used

$424

89 sales· -1% vs mkt

Unspecified

$432

56 sales

Price Trend383 sales

Glock 21 — Variants

Gen 4 · .45 ACP$370160 sales Gen 3 · .45 ACP$39461 sales SF Gen 3 · .45 ACP$39242 sales Gen 2 · .45 ACP$38625 sales Gen 5 MOS · .45 ACP$50420 sales

Active Listings

View all

Nice-Glock 21 Gen 4 G4 Generation 4 .45 ACP w/ Night Sights $Super Deal$ 14

1 / 4

76GREAT

1d 6h

Glock 21 Gen 4

.45 ACP

$330mkt $600

14 bids

saves $270

Case

✦45% below market

1 / 5

73GOOD

7d 17h

Glock 21 C

.45 ACP

$350mkt $525

1 bids+1

saves $175

✦33% below market

RIAC

Nice-Glock 21 Gen 4 G4 Generation 4 .45 ACP w/ Night Sights $Super Deal$ 16

1 / 4

65GOOD

5d 6h

Glock 21 Gen 4

.45 ACP

$239mkt $525

7 bids

saves $286

Case

✦54% below market

Nice-Glock 21 Gen 4 G4 Generation 4 .45 ACP w/ Night Sights $Super Deal$ 15

1 / 4

63FAIR

3d 6h

Glock 21 Gen 4

.45 ACP

$310mkt $575

6 bids

saves $265

BoxCase

✦46% below market

Glock G21 Gen 3 Early Model w/ Pentagon Barrel No Dot 21

1 / 19

58FAIR

1d 5h

Glock 21 Gen 3

.45 ACP

$395mkt $475

2 bids

saves $80

✦17% below market

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

54FAIR

3d 6h

Glock 21 Gen 4

.45 ACP

$470mkt $575

15 bids

saves $105

BoxCase+Mags

✦18% below market

Just Sold5 most recent

May 29UsedGlock 21 Gen3 SF G21 Gen 3 Short Frame 45 ACP 4.61 +2 MAGS
$60040%
May 29UsedGlock 21 Gen4 G21 Gen 4 45 ACP 4.61 +FOUR MAGS, ORIG CASE

Cross-Shop · Glock 21 vs Peers

Same class · within ±35% market

Sig Sauer

P320

$460

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Upcoming at Auction

RIAC

RIAC On Time Firearms Auction #5034

Closes Jun 7, 2026

View Catalog

Glock 21 Pistol

Est. $35073