$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
Glock 21 Gen4 .45 Optic Ready, 4.61 in., 13rd, Two-Tone
- .45
- 13rd
- 4.61 in.
- Striker-fired
- 10% below usual
- Free shipping
$648.99Usually $721.61
Save $72.62
Lower than usual: it usually sells for $721.61, its median price over the last 90 days.
Free shipping to your FFL dealer, before tax and the transfer fee. 15% under MSRP.
Iron Mesa Armory
Lowest of 5 stores4.9 (12.7K), in stock,
Compare 6 stores
5 in stock.
Ranked by landed price: the item plus shipping to you, before tax.
| Store | Landed price | Versus best | Stock | Store link |
|---|---|---|---|---|
Iron Mesa Armory4.9 4.9(12.7K)store rating | $648.99 | Best price | In stock | Buy at Iron Mesa Armory (opens in a new tab) |
 High Desert Guns4.2 4.2(1.9K)store rating | $649.99 | +$1.00 | Not reported | Buy at High Desert Guns (opens in a new tab) |
 Northfork Firearms4.7 4.7(7.3K)store rating | $651.99 | +$3.00 | In stock | Buy at Northfork Firearms (opens in a new tab) |
 Bayou Arms Co.4.1 4.1(1.7K)store rating | $659.95 | +$10.96 | Not reported | Buy at Bayou Arms Co. (opens in a new tab) |
 Gulf Coast Guns4.6 4.6(9.2K)store rating | $721.94 | +$72.95 | In stock | Buy at Gulf Coast Guns (opens in a new tab) |
 Black Canyon Arms4.3 4.3(3.5K)store rating | $588.99 | Not available | Out of stock | View at Black Canyon Arms (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
The lowest price and each store's own, every day for 2 years.
- Usual
- $721.61
- 90-day median
- 90-day low
- $533.08
- 90-day high
- $733.76
- 2-year low
- $484.88
- Feb 12, 2025
- Unchanged for
- 8 days
- Since Oct 12, 2026
Every price change (127 in 2 years)
| Date | Lowest price | Change |
|---|---|---|
| Oct 12, 2026 | $648.99 | Up 16.7% |
| Oct 5, 2026 | $556.13 | Down 23.1% |
| Sep 25, 2026 | $723.18 | Up 8.0% |
| Sep 21, 2026 | $669.35 | Up 3.2% |
| Sep 17, 2026 | $648.37 | Up 1.5% |
| Sep 16, 2026 | $639.01 | Down 12.9% |
| Aug 20, 2026 | $733.76 | Up 1.7% |
| Aug 5, 2026 | $721.61 | Up 35.4% |
| Aug 3, 2026 | $533.08 | Down 19.8% |
| Jul 30, 2026 | $664.39 | Down 8.7% |
| Jul 26, 2026 | $728.09 | Up 14.0% |
| Jul 23, 2026 | $638.74 | Down 2.7% |
| Jul 18, 2026 | $656.67 | Up 3.7% |
| Jul 5, 2026 | $633.29 | Up 1.1% |
| Jul 3, 2026 | $626.11 | Down 2.7% |
| Jul 2, 2026 | $643.77 | Up 1.8% |
| Jun 29, 2026 | $632.69 | Down 8.1% |
| Jun 10, 2026 | $688.32 | Up 8.7% |
| Jun 8, 2026 | $633.41 | Up 19.0% |
| Jun 6, 2026 | $532.12 | Down 17.0% |
| May 26, 2026 | $641.42 | Up 6.3% |
| May 25, 2026 | $603.68 | Up 0.5% |
| May 22, 2026 | $600.72 | Down 4.6% |
| May 17, 2026 | $629.50 | Up 18.0% |
| May 12, 2026 | $533.26 | Down 16.3% |
| May 6, 2026 | $636.82 | Up 0.3% |
| May 5, 2026 | $634.91 | Down 0.6% |
| May 2, 2026 | $638.57 | Up 22.6% |
| Apr 11, 2026 | $521.06 | Down 15.7% |
| Apr 8, 2026 | $617.99 | Down 2.4% |
| Mar 30, 2026 | $633.33 | Down 0.0% |
| Mar 7, 2026 | $633.48 | Up 9.5% |
| Mar 2, 2026 | $578.61 | Down 17.8% |
| Feb 25, 2026 | $704.21 | Up 38.9% |
| Feb 23, 2026 | $506.90 | Down 20.2% |
| Feb 19, 2026 | $635.53 | Down 3.2% |
| Feb 18, 2026 | $656.47 | Up 7.0% |
| Feb 14, 2026 | $613.32 | Down 1.2% |
| Feb 12, 2026 | $620.54 | Up 19.1% |
| Feb 10, 2026 | $520.98 | Down 14.4% |
| Feb 8, 2026 | $608.70 | Up 5.6% |
| Feb 4, 2026 | $576.28 | Down 5.3% |
| Feb 3, 2026 | $608.27 | Down 4.5% |
| Jan 29, 2026 | $636.91 | Down 8.1% |
| Jan 28, 2026 | $693.03 | Up 10.3% |
| Jan 25, 2026 | $628.54 | Up 1.7% |
| Jan 2, 2026 | $618.08 | Up 0.6% |
| Jan 1, 2026 | $614.27 | Down 0.8% |
| Dec 23, 2025 | $619.29 | Down 6.4% |
| Dec 13, 2025 | $661.68 | Up 6.5% |
| Dec 11, 2025 | $621.42 | Up 0.9% |
| Dec 9, 2025 | $616.06 | Down 11.8% |
| Dec 8, 2025 | $698.10 | Up 27.0% |
| Dec 3, 2025 | $549.51 | Down 11.9% |
| Dec 2, 2025 | $623.45 | Up 22.1% |
| Nov 19, 2025 | $510.67 | Down 8.2% |
| Nov 15, 2025 | $556.39 | Down 13.9% |
| Nov 14, 2025 | $645.86 | Down 7.1% |
| Nov 11, 2025 | $695.35 | Up 8.1% |
| Nov 9, 2025 | $643.28 | Up 10.5% |
| Nov 1, 2025 | $582.24 | Down 7.9% |
| Oct 28, 2025 | $632.29 | Down 4.3% |
| Oct 24, 2025 | $660.63 | Up 7.4% |
| Sep 26, 2025 | $614.89 | Up 3.1% |
| Sep 18, 2025 | $596.64 | Down 3.3% |
| Sep 17, 2025 | $616.78 | Down 0.7% |
| Sep 16, 2025 | $621.18 | Up 24.8% |
| Sep 10, 2025 | $497.69 | Down 26.8% |
| Aug 15, 2025 | $679.99 | Up 0.9% |
| Jul 28, 2025 | $673.62 | Up 8.4% |
| Jul 25, 2025 | $621.14 | Down 9.1% |
| Jul 23, 2025 | $683.08 | Up 12.0% |
| Jul 17, 2025 | $610.13 | Down 1.9% |
| Jul 11, 2025 | $621.87 | Up 3.0% |
| Jul 10, 2025 | $603.92 | Up 13.4% |
| Jun 25, 2025 | $532.33 | Down 12.6% |
| Jun 19, 2025 | $609.36 | Down 12.6% |
| Jun 18, 2025 | $697.16 | Up 14.7% |
| Jun 17, 2025 | $607.73 | Down 2.7% |
| Jun 13, 2025 | $624.33 | Up 3.4% |
| Jun 5, 2025 | $603.53 | Down 2.2% |
| Jun 2, 2025 | $617.01 | Down 0.7% |
| May 29, 2025 | $621.08 | Up 24.5% |
| May 28, 2025 | $498.74 | Down 1.7% |
| May 26, 2025 | $507.22 | Down 0.9% |
| May 24, 2025 | $511.58 | Down 17.9% |
| May 23, 2025 | $622.78 | Down 11.7% |
| May 16, 2025 | $705.19 | Up 18.1% |
| May 15, 2025 | $596.87 | Up 12.4% |
| May 13, 2025 | $530.98 | Down 13.0% |
| May 5, 2025 | $610.17 | Up 14.3% |
| Apr 27, 2025 | $533.81 | Down 12.0% |
| Apr 19, 2025 | $606.57 | Down 1.3% |
| Apr 14, 2025 | $614.26 | Down 11.6% |
| Apr 10, 2025 | $694.77 | Up 12.6% |
| Apr 3, 2025 | $617.17 | Up 3.3% |
| Mar 29, 2025 | $597.31 | Up 4.4% |
| Mar 26, 2025 | $572.27 | Up 11.4% |
| Mar 23, 2025 | $513.67 | Down 9.5% |
| Mar 22, 2025 | $567.65 | Down 13.2% |
| Mar 9, 2025 | $653.77 | Up 21.1% |
| Mar 6, 2025 | $539.82 | Down 10.5% |
| Feb 18, 2025 | $603.10 | Up 10.4% |
| Feb 13, 2025 | $546.05 | Up 12.6% |
| Feb 11, 2025 | $484.88 | Down 18.2% |
| Feb 6, 2025 | $593.01 | Up 2.1% |
| Feb 4, 2025 | $581.04 | Down 10.9% |
| Jan 31, 2025 | $652.02 | Up 8.8% |
| Jan 30, 2025 | $599.45 | Up 23.0% |
| Jan 24, 2025 | $487.47 | Down 18.9% |
| Jan 22, 2025 | $600.85 | Up 0.7% |
| Jan 20, 2025 | $596.71 | Up 1.1% |
| Jan 19, 2025 | $590.07 | Down 15.1% |
| Jan 15, 2025 | $694.92 | Up 13.8% |
| Jan 13, 2025 | $610.48 | Down 10.0% |
| Jan 4, 2025 | $678.07 | Up 15.8% |
| Dec 30, 2024 | $585.45 | Down 3.6% |
| Dec 28, 2024 | $607.39 | Down 0.6% |
| Dec 3, 2024 | $610.90 | Down 4.6% |
| Nov 28, 2024 | $640.10 | Up 8.1% |
| Nov 25, 2024 | $592.22 | Up 12.6% |
| Nov 18, 2024 | $525.72 | Down 11.1% |
| Nov 15, 2024 | $591.57 | Down 1.3% |
| Nov 13, 2024 | $599.12 | Up 0.8% |
| Nov 8, 2024 | $594.48 | Up 0.6% |
| Oct 31, 2024 | $591.21 | Up 2.7% |
| Oct 23, 2024 | $575.94 | Down 4.5% |
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 two-Tone 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
- Two-Tone
- Configuration
- Optic ready
- Condition
- New
$648.9910% below usual
at Iron Mesa Armory
