$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, Battleship Grey Cerakote
Glock 21 Gen4 .45 with Holosun 507K, 4.61 in., 13rd, Battleship Grey Cerakote
- .45
- 13rd
- 4.61 in.
- Striker-fired
- 15% below usual
$803.94Usually $942.31
Save $138.37
Lower than usual: it usually sells for $942.31, its median price over the last 90 days.
$783.99 + $19.95 shipping to your FFL dealer, before tax and the transfer fee. 22% under MSRP.
Keystone Shooting Supply
Lowest of 6 stores4.8 (24.5K), in stock,
Compare 6 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 | $803.94 | Best price | In stock | Buy at Keystone Shooting Supply (opens in a new tab) |
 Westbound Armory4.7 4.7(4.6K)store rating | $854.98 | +$51.04 | In stock | Buy at Westbound Armory (opens in a new tab) |
 Red River Outdoors4.4 4.4(28.9K)store rating | $891.94 | +$88.00 | In stock | Buy at Red River Outdoors (opens in a new tab) |
 Cedar Hollow Arms4.8 4.8(5.1K)store rating | $902.95 | +$99.01 | In stock | Buy at Cedar Hollow Arms (opens in a new tab) |
 Ridgeline Arms4.8 4.8(18.2K)store rating | $919.98 | +$116.04 | In stock | Buy at Ridgeline Arms (opens in a new tab) |
 Palisade Sporting Goods4.2 4.2(52.8K)store rating | $978.94 | +$175.00 | In stock | Buy at Palisade Sporting Goods (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
- $942.31
- 90-day median
- 90-day low
- $749.14
- 90-day high
- $968.89
- 2-year low
- $749.14
- Oct 14, 2026
- Unchanged for
- 5 days
- Since Oct 15, 2026
Every price change (123 in 2 years)
| Date | Lowest price | Change |
|---|---|---|
| Oct 15, 2026 | $803.94 | Up 7.3% |
| Oct 12, 2026 | $749.14 | Down 21.1% |
| Oct 8, 2026 | $949.12 | Up 2.3% |
| Sep 30, 2026 | $927.85 | Up 0.1% |
| Sep 29, 2026 | $926.55 | Up 1.4% |
| Sep 27, 2026 | $913.38 | Down 1.2% |
| Sep 26, 2026 | $924.27 | Up 0.2% |
| Sep 21, 2026 | $922.35 | Down 3.1% |
| Sep 17, 2026 | $951.73 | Up 0.1% |
| Sep 14, 2026 | $950.58 | Up 0.6% |
| Sep 12, 2026 | $944.55 | Down 0.6% |
| Sep 11, 2026 | $950.24 | Up 10.9% |
| Aug 27, 2026 | $857.09 | Down 10.6% |
| Aug 25, 2026 | $959.22 | Up 0.6% |
| Aug 15, 2026 | $953.35 | Up 0.2% |
| Aug 10, 2026 | $951.12 | Up 4.9% |
| Aug 9, 2026 | $906.80 | Down 3.8% |
| Jul 24, 2026 | $942.31 | Down 2.7% |
| Jul 6, 2026 | $968.89 | Up 7.4% |
| Jul 4, 2026 | $901.83 | Down 14.3% |
| Jun 23, 2026 | $1,052.82 | Up 14.6% |
| Jun 5, 2026 | $918.66 | Down 6.5% |
| May 31, 2026 | $982.76 | Up 4.9% |
| May 23, 2026 | $937.14 | Down 0.2% |
| May 9, 2026 | $939.12 | Down 1.1% |
| Apr 20, 2026 | $949.47 | Up 0.1% |
| Apr 5, 2026 | $948.11 | Down 0.2% |
| Mar 26, 2026 | $950.00 | Up 1.6% |
| Mar 15, 2026 | $935.11 | Down 4.0% |
| Mar 10, 2026 | $974.18 | Up 5.4% |
| Mar 5, 2026 | $924.11 | Down 14.8% |
| Mar 2, 2026 | $1,085.10 | Up 17.5% |
| Feb 26, 2026 | $923.23 | Down 1.8% |
| Feb 21, 2026 | $940.36 | Up 4.0% |
| Feb 20, 2026 | $903.77 | Up 4.1% |
| Feb 16, 2026 | $868.18 | Down 19.3% |
| Feb 1, 2026 | $1,075.81 | Up 35.1% |
| Jan 28, 2026 | $796.04 | Down 13.7% |
| Jan 20, 2026 | $922.22 | Down 10.8% |
| Jan 4, 2026 | $1,034.01 | Up 4.5% |
| Jan 3, 2026 | $989.31 | Down 0.8% |
| Dec 27, 2025 | $997.09 | Up 7.9% |
| Dec 22, 2025 | $923.68 | Down 1.2% |
| Dec 20, 2025 | $934.76 | Down 11.8% |
| Dec 8, 2025 | $1,060.19 | Up 8.3% |
| Dec 4, 2025 | $978.60 | Up 1.6% |
| Dec 1, 2025 | $963.57 | Up 4.4% |
| Nov 28, 2025 | $923.37 | Down 3.6% |
| Nov 19, 2025 | $957.73 | Down 1.3% |
| Nov 13, 2025 | $970.54 | Up 0.7% |
| Nov 12, 2025 | $963.98 | Down 4.0% |
| Nov 9, 2025 | $1,003.63 | Up 8.0% |
| Nov 6, 2025 | $928.96 | Down 0.1% |
| Nov 4, 2025 | $930.25 | Down 3.7% |
| Oct 25, 2025 | $965.77 | Up 1.9% |
| Oct 16, 2025 | $948.01 | Up 1.6% |
| Oct 13, 2025 | $933.40 | Down 2.3% |
| Oct 9, 2025 | $955.23 | Down 6.0% |
| Oct 7, 2025 | $1,016.06 | Up 6.2% |
| Sep 28, 2025 | $956.87 | Up 8.3% |
| Sep 27, 2025 | $883.34 | Down 1.0% |
| Sep 26, 2025 | $892.06 | Up 6.3% |
| Sep 22, 2025 | $839.53 | Down 19.9% |
| Sep 3, 2025 | $1,047.98 | Up 20.3% |
| Sep 1, 2025 | $871.22 | Down 11.0% |
| Aug 28, 2025 | $978.99 | Up 6.6% |
| Aug 21, 2025 | $918.02 | Down 0.2% |
| Aug 17, 2025 | $919.91 | Down 4.1% |
| Aug 16, 2025 | $959.62 | Up 1.4% |
| Aug 13, 2025 | $946.09 | Up 12.0% |
| Aug 3, 2025 | $844.47 | Up 10.7% |
| Jul 29, 2025 | $762.79 | Down 18.3% |
| Jul 27, 2025 | $933.97 | Down 1.1% |
| Jul 24, 2025 | $944.06 | Down 0.4% |
| Jul 17, 2025 | $947.50 | Down 11.0% |
| Jun 29, 2025 | $1,064.45 | Up 14.1% |
| Jun 24, 2025 | $932.72 | Down 1.5% |
| Jun 21, 2025 | $947.23 | Down 7.6% |
| Jun 10, 2025 | $1,025.50 | Up 10.0% |
| Jun 9, 2025 | $932.05 | Down 0.7% |
| Jun 7, 2025 | $938.63 | Down 0.8% |
| Jun 6, 2025 | $946.02 | Down 6.9% |
| May 16, 2025 | $1,016.06 | Down 6.4% |
| May 5, 2025 | $1,085.32 | Up 11.0% |
| Apr 22, 2025 | $977.77 | Up 2.6% |
| Apr 16, 2025 | $952.89 | Down 10.7% |
| Apr 1, 2025 | $1,067.65 | Down 1.1% |
| Mar 28, 2025 | $1,079.18 | Up 19.5% |
| Mar 26, 2025 | $903.34 | Down 3.7% |
| Mar 21, 2025 | $937.73 | Down 0.1% |
| Mar 18, 2025 | $938.61 | Down 0.8% |
| Mar 16, 2025 | $945.84 | Up 19.7% |
| Mar 12, 2025 | $790.00 | Down 16.4% |
| Mar 7, 2025 | $944.66 | Down 1.4% |
| Feb 19, 2025 | $957.83 | Up 20.4% |
| Feb 5, 2025 | $795.85 | Down 8.4% |
| Feb 4, 2025 | $869.12 | Down 13.9% |
| Feb 2, 2025 | $1,009.57 | Up 7.2% |
| Jan 28, 2025 | $941.69 | Up 0.3% |
| Jan 22, 2025 | $938.92 | Down 12.2% |
| Jan 21, 2025 | $1,069.47 | Up 14.3% |
| Jan 18, 2025 | $935.28 | Up 18.3% |
| Jan 16, 2025 | $790.82 | Down 18.6% |
| Jan 14, 2025 | $971.23 | Up 1.0% |
| Jan 3, 2025 | $961.78 | Up 3.2% |
| Jan 2, 2025 | $932.28 | Up 0.7% |
| Jan 1, 2025 | $926.15 | Up 10.8% |
| Dec 29, 2024 | $835.72 | Down 21.8% |
| Dec 26, 2024 | $1,068.48 | Up 11.0% |
| Dec 23, 2024 | $962.81 | Down 0.1% |
| Dec 19, 2024 | $963.37 | Up 2.6% |
| Dec 16, 2024 | $938.88 | Up 15.3% |
| Nov 30, 2024 | $813.96 | Down 14.8% |
| Nov 25, 2024 | $954.83 | Up 13.8% |
| Nov 23, 2024 | $839.34 | Up 5.0% |
| Nov 21, 2024 | $799.25 | Down 12.7% |
| Nov 20, 2024 | $915.85 | Up 13.6% |
| Nov 19, 2024 | $805.94 | Down 18.3% |
| Nov 16, 2024 | $986.08 | Up 1.6% |
| Nov 13, 2024 | $970.69 | Up 19.3% |
| Oct 26, 2024 | $813.54 | Up 2.4% |
| Oct 24, 2024 | $794.42 | Down 23.8% |
| Oct 21, 2024 | $1,042.56 | Up 7.7% |
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 battleship Grey 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
- Battleship Grey Cerakote
- Configuration
- With red dot
- Condition
- New
$803.9415% below usual
at Keystone Shooting Supply
