$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, Bright White Cerakote
Glock 21 Gen4 .45 with Holosun 507K, 4.61 in., 13rd, Bright White Cerakote
- .45
- 13rd
- 4.61 in.
- Striker-fired
$975.90
About usual: it usually sells for $975.90, its median price over the last 90 days.
$955.95 + $19.95 shipping to your FFL dealer, before tax and the transfer fee. 6% under MSRP.
Keystone Shooting Supply
Lowest of 5 stores4.8 (24.5K), only 9 left,
Compare 5 stores
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 | $975.90 | Best price | Only 9 left | Buy at Keystone Shooting Supply (opens in a new tab) |
 Bayou Arms Co.4.1 4.1(1.7K)store rating | $1,059 | +$83.10 | Not reported | Buy at Bayou Arms Co. (opens in a new tab) |
 Ridgeline Arms4.8 4.8(18.2K)store rating | $1,078.99 | +$103.09 | In stock | Buy at Ridgeline Arms (opens in a new tab) |
 Timber Ridge Sporting4.6 4.6(41.3K)store rating | $1,084.98 | +$109.08 | In stock | Buy at Timber Ridge Sporting (opens in a new tab) |
 Iron Mesa Armory4.9 4.9(12.7K)store rating | $1,120 | +$144.10 | Only 4 left | Buy at Iron Mesa Armory (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
- $975.90
- 90-day median
- 90-day low
- $801.97
- 90-day high
- $1,028.51
- 2-year low
- $779.14
- Jul 12, 2026
- Unchanged for
- 26 days
- Since Sep 24, 2026
Every price change (111 in 2 years)
| Date | Lowest price | Change |
|---|---|---|
| Sep 24, 2026 | $975.90 | Up 3.4% |
| Sep 23, 2026 | $943.40 | Down 1.6% |
| Sep 14, 2026 | $958.56 | Down 2.1% |
| Sep 12, 2026 | $979.59 | Up 22.1% |
| Sep 4, 2026 | $801.97 | Down 18.0% |
| Aug 31, 2026 | $978.15 | Up 1.7% |
| Aug 21, 2026 | $961.81 | Down 1.8% |
| Aug 20, 2026 | $979.12 | Down 0.6% |
| Aug 7, 2026 | $985.14 | Up 1.9% |
| Jul 31, 2026 | $967.18 | Up 1.9% |
| Jul 30, 2026 | $949.58 | Down 7.7% |
| Jul 28, 2026 | $1,028.51 | Up 22.8% |
| Jul 26, 2026 | $837.43 | Up 0.6% |
| Jul 20, 2026 | $832.32 | Down 15.5% |
| Jul 13, 2026 | $985.29 | Up 26.5% |
| Jul 9, 2026 | $779.14 | Down 13.1% |
| Jul 7, 2026 | $896.24 | Down 7.9% |
| Jun 26, 2026 | $973.18 | Up 1.5% |
| Jun 25, 2026 | $958.97 | Down 4.6% |
| Jun 18, 2026 | $1,004.69 | Up 3.6% |
| Jun 5, 2026 | $970.18 | Up 1.9% |
| May 23, 2026 | $952.18 | Down 6.4% |
| May 19, 2026 | $1,016.81 | Up 3.1% |
| May 17, 2026 | $986.06 | Down 8.7% |
| May 3, 2026 | $1,079.64 | Up 13.6% |
| Apr 29, 2026 | $950.11 | Up 2.7% |
| Apr 9, 2026 | $924.92 | Down 4.4% |
| Mar 24, 2026 | $967.83 | Up 0.8% |
| Mar 19, 2026 | $960.60 | Up 0.0% |
| Mar 9, 2026 | $960.25 | Down 2.7% |
| Mar 2, 2026 | $986.90 | Up 2.2% |
| Feb 28, 2026 | $965.78 | Up 13.4% |
| Feb 21, 2026 | $851.49 | Down 25.2% |
| Feb 17, 2026 | $1,138.51 | Up 34.8% |
| Feb 12, 2026 | $844.74 | Down 24.1% |
| Jan 26, 2026 | $1,112.73 | Up 11.7% |
| Jan 23, 2026 | $995.97 | Up 0.6% |
| Jan 17, 2026 | $989.69 | Down 4.7% |
| Jan 15, 2026 | $1,038.73 | Up 4.7% |
| Jan 8, 2026 | $992.56 | Up 2.2% |
| Jan 6, 2026 | $971.54 | Up 17.1% |
| Dec 30, 2025 | $829.88 | Down 15.7% |
| Dec 29, 2025 | $984.02 | Down 10.6% |
| Dec 14, 2025 | $1,101.05 | Up 11.8% |
| Dec 13, 2025 | $984.62 | Up 1.5% |
| Dec 6, 2025 | $969.74 | Down 2.2% |
| Dec 5, 2025 | $991.91 | Down 0.9% |
| Nov 28, 2025 | $1,000.67 | Up 12.4% |
| Nov 26, 2025 | $889.99 | Up 9.6% |
| Nov 18, 2025 | $811.74 | Down 17.5% |
| Nov 9, 2025 | $984.18 | Up 2.0% |
| Nov 3, 2025 | $964.54 | Down 7.9% |
| Nov 1, 2025 | $1,047.44 | Up 5.4% |
| Oct 30, 2025 | $994.09 | Up 23.7% |
| Oct 22, 2025 | $803.39 | Down 19.6% |
| Oct 20, 2025 | $999.58 | Down 0.1% |
| Oct 19, 2025 | $1,000.11 | Up 0.8% |
| Oct 18, 2025 | $992.29 | Down 1.7% |
| Oct 15, 2025 | $1,009.07 | Up 2.2% |
| Sep 22, 2025 | $987.05 | Down 0.6% |
| Sep 16, 2025 | $993.37 | Up 2.5% |
| Sep 4, 2025 | $969.15 | Down 2.9% |
| Aug 28, 2025 | $997.97 | Down 1.6% |
| Aug 27, 2025 | $1,013.85 | Up 3.7% |
| Aug 25, 2025 | $977.27 | Down 11.5% |
| Aug 19, 2025 | $1,104.07 | Up 14.1% |
| Aug 18, 2025 | $967.29 | Down 3.7% |
| Aug 14, 2025 | $1,004.73 | Down 12.8% |
| Aug 7, 2025 | $1,152.65 | Up 6.5% |
| Jul 29, 2025 | $1,081.96 | Up 32.4% |
| Jul 17, 2025 | $817.10 | Down 18.6% |
| Jul 16, 2025 | $1,004.30 | Up 1.3% |
| Jul 6, 2025 | $991.14 | Down 11.0% |
| Jun 13, 2025 | $1,113.22 | Up 9.5% |
| Jun 10, 2025 | $1,016.25 | Down 1.2% |
| Jun 6, 2025 | $1,028.38 | Up 2.3% |
| Jun 3, 2025 | $1,005.17 | Up 0.1% |
| Jun 2, 2025 | $1,003.97 | Down 1.7% |
| May 29, 2025 | $1,020.89 | Up 1.9% |
| May 28, 2025 | $1,001.49 | Up 5.3% |
| May 2, 2025 | $950.67 | Down 5.9% |
| Apr 29, 2025 | $1,010.21 | Up 3.8% |
| Apr 23, 2025 | $973.39 | Down 4.7% |
| Mar 29, 2025 | $1,021.67 | Up 6.2% |
| Mar 28, 2025 | $962.18 | Down 5.4% |
| Mar 22, 2025 | $1,016.61 | Down 1.0% |
| Mar 21, 2025 | $1,026.73 | Up 14.7% |
| Mar 17, 2025 | $894.77 | Down 7.2% |
| Mar 15, 2025 | $964.45 | Up 8.7% |
| Mar 12, 2025 | $887.42 | Down 10.7% |
| Mar 9, 2025 | $994.07 | Down 1.4% |
| Feb 24, 2025 | $1,007.82 | Down 6.3% |
| Feb 7, 2025 | $1,075.30 | Up 8.5% |
| Feb 1, 2025 | $990.76 | Up 1.3% |
| Jan 30, 2025 | $977.92 | Down 3.6% |
| Jan 14, 2025 | $1,013.95 | Up 2.6% |
| Jan 13, 2025 | $988.32 | Up 0.3% |
| Jan 4, 2025 | $985.70 | Down 3.2% |
| Dec 31, 2024 | $1,018 | Down 5.1% |
| Dec 26, 2024 | $1,073.01 | Up 7.1% |
| Dec 22, 2024 | $1,001.90 | Down 3.1% |
| Dec 5, 2024 | $1,033.51 | Up 17.2% |
| Nov 24, 2024 | $881.72 | Down 15.5% |
| Nov 20, 2024 | $1,043.22 | Up 14.2% |
| Nov 16, 2024 | $913.19 | Down 13.2% |
| Nov 7, 2024 | $1,051.72 | Down 10.2% |
| Nov 5, 2024 | $1,171.43 | Up 9.7% |
| Nov 2, 2024 | $1,067.70 | Down 0.7% |
| Oct 28, 2024 | $1,075.42 | Up 4.4% |
| Oct 27, 2024 | $1,030.35 | Up 1.8% |
| Oct 25, 2024 | $1,012.26 | Up 2.7% |
About this product
The Glock 21 Gen4 .45 with Holosun 507K 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 bright White Cerakote finish in the with red dot 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
- Bright White Cerakote
- Configuration
- With red dot
- Condition
- New
$975.90
at Keystone Shooting Supply
