$619.94Usually $839.39
Save $219.45
Glock 21 Gen4 .45 with Holosun 507K, 4.61 in., 13rd, OD Green
Granite Peak Supply4.6Price dropped
G21.45, Robin's Egg Blue Cerakote
Glock 21 Gen4 .45 Optic Ready, 4.61 in., 13rd, Robin's Egg Blue Cerakote
- .45
- 13rd
- 4.61 in.
- Striker-fired
- 14% below usual
- Price dropped
$677.94Usually $791.77
Save $113.83
Lower than usual: it usually sells for $791.77, its median price over the last 90 days.
$657.99 + $19.95 shipping to your FFL dealer, before tax and the transfer fee. 17% under MSRP.
Keystone Shooting Supply
4.8 (24.5K), out of stock,
Compare 2 stores
0 in stock.
Ranked by landed price: the item plus shipping to you, before tax.
| Store | Landed price | Versus best | Stock | Store link |
|---|---|---|---|---|
Keystone Shooting Supply4.8 4.8(24.5K)store rating | $677.94 | Not available | Out of stock | View at Keystone Shooting Supply (opens in a new tab) |
 Coyote Trail Supply4.5 4.5(8.1K)store rating | $715.48 | Not available | Out of stock | View at Coyote Trail Supply (opens in a new tab) |
Guns ship to a licensed dealer (FFL) near you for pickup. Landed prices include shipping to the dealer, not their transfer fee.
Price history
- Usual
- $791.77
- 90-day median
- 90-day low
- $665.36
- 90-day high
- $848.88
- 2-year low
- $632.88
- Jul 16, 2026
- Unchanged for
- 3 days
- Since Oct 17, 2026
Every price change (127 in 2 years)
| Date | Lowest price | Change |
|---|---|---|
| Oct 17, 2026 | $677.94 | Down 16.5% |
| Oct 15, 2026 | $812.16 | Up 2.4% |
| Sep 30, 2026 | $793.13 | Up 19.2% |
| Sep 13, 2026 | $665.36 | Down 12.7% |
| Sep 12, 2026 | $762.05 | Down 10.2% |
| Sep 2, 2026 | $848.88 | Up 10.5% |
| Sep 1, 2026 | $768.02 | Down 3.0% |
| Aug 23, 2026 | $791.77 | Up 0.2% |
| Aug 18, 2026 | $790.01 | Up 4.7% |
| Aug 15, 2026 | $754.77 | Down 1.1% |
| Aug 5, 2026 | $763.24 | Down 3.8% |
| Jul 24, 2026 | $793.66 | Up 3.0% |
| Jul 22, 2026 | $770.59 | Up 3.1% |
| Jul 17, 2026 | $747.23 | Up 18.1% |
| Jul 12, 2026 | $632.88 | Down 20.1% |
| Jul 9, 2026 | $792.23 | Down 0.1% |
| Jul 4, 2026 | $792.69 | Up 2.1% |
| Jul 3, 2026 | $776.09 | Down 4.2% |
| Jun 29, 2026 | $810.09 | Up 10.7% |
| Jun 26, 2026 | $731.74 | Up 7.0% |
| Jun 5, 2026 | $683.97 | Down 11.5% |
| May 29, 2026 | $772.78 | Down 9.3% |
| May 24, 2026 | $851.70 | Up 16.9% |
| May 20, 2026 | $728.61 | Down 5.4% |
| May 18, 2026 | $770.07 | Down 0.2% |
| May 12, 2026 | $771.86 | Down 2.8% |
| May 10, 2026 | $793.79 | Up 0.4% |
| May 4, 2026 | $790.26 | Down 1.1% |
| May 2, 2026 | $798.71 | Down 10.1% |
| May 1, 2026 | $888.90 | Up 15.8% |
| Apr 26, 2026 | $767.94 | Down 3.0% |
| Apr 25, 2026 | $791.62 | Up 21.6% |
| Apr 22, 2026 | $650.89 | Down 9.0% |
| Apr 12, 2026 | $715.20 | Down 8.4% |
| Apr 7, 2026 | $780.74 | Down 1.2% |
| Mar 31, 2026 | $789.99 | Up 16.5% |
| Mar 29, 2026 | $678.38 | Down 15.6% |
| Mar 23, 2026 | $804.19 | Up 4.2% |
| Mar 17, 2026 | $771.58 | Down 1.7% |
| Mar 15, 2026 | $784.89 | Up 16.7% |
| Mar 11, 2026 | $672.31 | Down 25.8% |
| Mar 3, 2026 | $906.00 | Up 1.7% |
| Mar 1, 2026 | $890.63 | Up 15.3% |
| Feb 27, 2026 | $772.70 | Down 4.7% |
| Feb 23, 2026 | $810.68 | Up 2.1% |
| Feb 21, 2026 | $793.64 | Up 0.9% |
| Feb 20, 2026 | $786.84 | Down 1.2% |
| Feb 18, 2026 | $796.31 | Up 6.5% |
| Feb 16, 2026 | $747.41 | Down 2.6% |
| Feb 8, 2026 | $767.54 | Up 21.3% |
| Feb 6, 2026 | $633.00 | Down 21.4% |
| Feb 5, 2026 | $804.93 | Up 2.6% |
| Jan 25, 2026 | $784.82 | Up 2.8% |
| Jan 20, 2026 | $763.49 | Down 5.3% |
| Jan 19, 2026 | $805.84 | Up 4.5% |
| Jan 14, 2026 | $771.11 | Down 5.6% |
| Dec 21, 2025 | $816.65 | Up 23.3% |
| Dec 13, 2025 | $662.58 | Down 19.0% |
| Dec 10, 2025 | $818.34 | Up 2.0% |
| Dec 5, 2025 | $802.49 | Up 1.3% |
| Nov 22, 2025 | $792.37 | Up 4.0% |
| Nov 11, 2025 | $762.14 | Down 2.2% |
| Nov 8, 2025 | $779.52 | Down 7.1% |
| Nov 4, 2025 | $838.82 | Up 25.0% |
| Nov 3, 2025 | $670.87 | Down 24.6% |
| Oct 31, 2025 | $890.21 | Up 10.5% |
| Oct 28, 2025 | $805.93 | Up 1.9% |
| Oct 26, 2025 | $790.89 | Down 3.2% |
| Oct 23, 2025 | $816.97 | Up 5.1% |
| Oct 14, 2025 | $777.34 | Down 2.9% |
| Oct 7, 2025 | $800.20 | Up 0.0% |
| Oct 6, 2025 | $799.84 | Up 3.5% |
| Oct 3, 2025 | $772.57 | Down 15.3% |
| Sep 20, 2025 | $912.48 | Up 19.3% |
| Sep 15, 2025 | $764.85 | Down 12.2% |
| Sep 11, 2025 | $870.84 | Up 9.0% |
| Sep 9, 2025 | $799.15 | Down 7.8% |
| Aug 31, 2025 | $866.51 | Up 11.1% |
| Aug 26, 2025 | $779.86 | Up 6.0% |
| Aug 18, 2025 | $736.04 | Up 15.2% |
| Aug 2, 2025 | $639.10 | Down 7.8% |
| Jul 27, 2025 | $693.54 | Down 15.1% |
| Jul 22, 2025 | $816.84 | Up 1.3% |
| Jul 16, 2025 | $806.63 | Up 1.4% |
| Jul 13, 2025 | $795.14 | Up 3.2% |
| Jul 8, 2025 | $770.76 | Down 4.0% |
| Jul 6, 2025 | $802.46 | Up 1.0% |
| Jun 19, 2025 | $794.60 | Down 0.8% |
| Jun 18, 2025 | $801.41 | Down 11.7% |
| May 24, 2025 | $907.65 | Down 1.0% |
| May 21, 2025 | $916.91 | Up 14.6% |
| May 17, 2025 | $799.91 | Up 12.9% |
| May 11, 2025 | $708.81 | Down 9.7% |
| May 10, 2025 | $784.81 | Up 0.9% |
| Apr 24, 2025 | $778.00 | Down 2.2% |
| Apr 15, 2025 | $795.37 | Down 10.5% |
| Apr 12, 2025 | $889.11 | Up 7.7% |
| Mar 31, 2025 | $825.92 | Up 4.9% |
| Mar 27, 2025 | $787.30 | Up 1.3% |
| Mar 26, 2025 | $777.52 | Down 2.8% |
| Mar 11, 2025 | $800.16 | Down 2.1% |
| Mar 4, 2025 | $817.58 | Up 1.7% |
| Mar 3, 2025 | $803.52 | Up 4.8% |
| Mar 2, 2025 | $766.55 | Down 0.2% |
| Feb 22, 2025 | $768.00 | Up 2.1% |
| Jan 26, 2025 | $752.22 | Down 6.0% |
| Jan 25, 2025 | $799.90 | Up 12.6% |
| Jan 12, 2025 | $710.67 | Down 10.9% |
| Jan 6, 2025 | $797.60 | Down 1.3% |
| Jan 3, 2025 | $807.71 | Down 0.7% |
| Dec 29, 2024 | $813.05 | Down 0.2% |
| Dec 26, 2024 | $814.53 | Up 2.4% |
| Dec 24, 2024 | $795.61 | Down 0.5% |
| Dec 18, 2024 | $799.23 | Down 11.6% |
| Dec 9, 2024 | $903.95 | Down 1.9% |
| Dec 8, 2024 | $921.23 | Up 13.9% |
| Dec 5, 2024 | $808.46 | Up 1.8% |
| Dec 1, 2024 | $794.41 | Down 0.9% |
| Nov 24, 2024 | $801.34 | Up 0.4% |
| Nov 17, 2024 | $798.27 | Down 12.6% |
| Nov 9, 2024 | $913.06 | Up 7.9% |
| Nov 5, 2024 | $846.35 | Up 8.3% |
| Nov 4, 2024 | $781.16 | Up 0.1% |
| Nov 3, 2024 | $780.65 | Down 5.4% |
| Nov 2, 2024 | $825.05 | Up 1.4% |
| Oct 27, 2024 | $813.40 | Up 10.4% |
| Oct 25, 2024 | $736.49 | Down 1.5% |
About this product
The Glock 21 Gen4 .45 Optic Ready is a handgun chambered in .45 ACP, with a striker-fired action, a 4.61-inch barrel and a 13-round capacity. This listing is the robin's Egg Blue Cerakote finish in the optic ready configuration, new. Guns ship to a licensed dealer (FFL) near you, who runs the background check and hands it over; their transfer fee is separate.
- Caliber
- .45 ACP
- Type
- Handgun
- Action
- Striker-fired
- Capacity
- 13 rounds
- Barrel length
- 4.61 in.
- Finish
- Robin's Egg Blue Cerakote
- Configuration
- Optic ready
- Condition
- New
$677.9414% below usual
at Keystone Shooting Supply
