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Sig Sauer M18 9mm with Holosun 507K, 3.9 in., 17rd, Armor Black Cerakote
Sig Sauer

Sig Sauer M18 9mm with Holosun 507K, 3.9 in., 17rd, Armor Black Cerakote

  • 9mm
  • 17rd
  • 3.9 in.
  • Striker-fired
  • 18% below usual
  • Lowest in 90 days
$749.98Usually $916.47

Save $166.49

Lower than usual: it usually sells for $916.47, its median price over the last 90 days.

$729.99 + $19.99 shipping to your FFL dealer, before tax and the transfer fee. 33% under MSRP.

Ridgeline Arms

Lowest of 4 stores

4.8 (18.2K), in stock,

Buy at Ridgeline Arms(opens the store in a new tab)

Compare 6 stores

4 in stock.

Ranked by landed price: the item plus shipping to you, before tax.

Stores selling Sig Sauer M18 9mm with Holosun 507K, 3.9 in., 17rd, Armor Black Cerakote, ranked by landed price
StoreLanded priceVersus bestStockStore link
Ridgeline Arms4.8
$749.98Best priceIn stockBuy at Ridgeline Arms (opens in a new tab)
Bayou Arms Co.4.1
$750.98+$1.00Not reportedBuy at Bayou Arms Co. (opens in a new tab)
Westbound Armory4.7
$794.98+$45.00In stockBuy at Westbound Armory (opens in a new tab)
Keystone Shooting Supply4.8
$806.94+$56.96In stockBuy at Keystone Shooting Supply (opens in a new tab)
Sawtooth Outfitters4.5
$690.49Not availableOut of stockView at Sawtooth Outfitters (opens in a new tab)
Lone Pine Outfitters4.5
$839.98Not availableOut of stockView at Lone Pine Outfitters (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
$916.47
90-day median
90-day low
$749.98
Today's price
90-day high
$960.43
2-year low
$667.19
Dec 22, 2024
Unchanged for
6 days
Since Oct 14, 2026
Every price change (117 in 2 years)
Every change of the lowest landed price, newest first
DateLowest priceChange
Oct 14, 2026$749.98Down 8.0%
Oct 7, 2026$815.14Up 3.3%
Oct 6, 2026$789.00Down 14.7%
Sep 30, 2026$924.88Up 0.8%
Sep 24, 2026$917.95Up 3.4%
Sep 23, 2026$887.66Down 0.7%
Sep 22, 2026$893.72Down 6.9%
Sep 14, 2026$960.43Up 3.9%
Sep 9, 2026$924.07Up 14.1%
Sep 6, 2026$810.06Down 12.0%
Aug 27, 2026$920.72Up 0.5%
Aug 15, 2026$916.47Up 4.8%
Aug 4, 2026$874.42Up 16.6%
Jul 27, 2026$750.12Down 17.4%
Jul 25, 2026$907.95Down 0.1%
Jul 17, 2026$909.09Up 2.0%
Jul 13, 2026$891.28Up 7.6%
Jul 6, 2026$828.52Down 8.6%
Jul 4, 2026$906.89Down 3.3%
Jul 2, 2026$937.48Up 3.3%
Jun 26, 2026$907.72Up 2.0%
Jun 15, 2026$889.88Down 0.7%
Jun 14, 2026$896.41Down 1.2%
Jun 13, 2026$907.42Down 2.9%
Jun 11, 2026$934.12Up 7.2%
Jun 9, 2026$871.70Up 18.0%
May 30, 2026$738.67Down 18.6%
May 25, 2026$907.27Down 2.3%
May 3, 2026$928.56Down 6.0%
Apr 26, 2026$988.02Down 0.7%
Apr 23, 2026$994.97Up 15.0%
Apr 21, 2026$864.98Down 15.7%
Apr 18, 2026$1,025.53Up 31.1%
Apr 12, 2026$782.51Down 14.9%
Apr 7, 2026$919.64Up 3.5%
Apr 2, 2026$888.86Down 4.0%
Mar 25, 2026$926.18Up 6.6%
Mar 17, 2026$869.13Down 4.7%
Mar 12, 2026$911.61Up 1.0%
Mar 5, 2026$902.81Up 3.2%
Feb 24, 2026$874.45Up 9.2%
Feb 20, 2026$800.78Down 8.4%
Feb 15, 2026$873.75Up 21.9%
Feb 13, 2026$716.58Down 19.4%
Feb 8, 2026$889.45Up 1.1%
Feb 7, 2026$879.77Up 1.3%
Feb 6, 2026$868.46Up 18.2%
Jan 27, 2026$734.91Down 18.6%
Jan 22, 2026$903.07Up 4.5%
Jan 20, 2026$863.90Down 14.0%
Jan 19, 2026$1,005.07Up 12.2%
Jan 14, 2026$895.79Up 5.3%
Jan 7, 2026$850.92Down 0.4%
Dec 28, 2025$854.71Down 0.1%
Dec 25, 2025$855.75Up 21.4%
Dec 24, 2025$705.14Down 13.2%
Dec 10, 2025$812.56Up 11.4%
Dec 6, 2025$729.47Down 13.6%
Nov 8, 2025$843.95Down 3.4%
Nov 7, 2025$873.61Up 2.6%
Nov 1, 2025$851.77Up 6.0%
Oct 24, 2025$803.81Down 4.8%
Oct 4, 2025$843.95Down 1.5%
Sep 30, 2025$856.88Up 19.3%
Sep 25, 2025$718.13Down 6.0%
Sep 23, 2025$764.29Down 0.6%
Sep 21, 2025$769.19Down 13.5%
Sep 19, 2025$889.16Up 5.3%
Sep 3, 2025$844.56Down 1.9%
Aug 30, 2025$860.90Up 1.7%
Aug 17, 2025$846.44Up 2.4%
Aug 12, 2025$826.85Up 2.0%
Jul 23, 2025$810.34Up 16.6%
Jul 21, 2025$694.75Down 14.1%
Jul 20, 2025$808.64Down 0.5%
Jul 7, 2025$813.08Up 16.9%
Jul 6, 2025$695.55Up 3.1%
Jul 1, 2025$674.42Down 14.6%
Jun 25, 2025$789.26Down 5.2%
Jun 24, 2025$832.58Up 23.2%
Jun 15, 2025$675.97Down 18.7%
Jun 14, 2025$831.17Down 0.6%
Jun 13, 2025$836.55Up 0.7%
Jun 4, 2025$830.99Down 11.2%
Jun 3, 2025$935.30Up 15.1%
May 23, 2025$812.58Down 0.3%
May 14, 2025$814.92Down 5.7%
May 5, 2025$864.10Down 1.8%
Apr 30, 2025$880.22Up 2.7%
Apr 22, 2025$857.48Up 12.0%
Apr 21, 2025$765.88Down 7.6%
Apr 8, 2025$829.13Up 19.6%
Apr 7, 2025$693.42Down 13.2%
Apr 3, 2025$798.47Up 18.7%
Mar 19, 2025$672.89Down 24.2%
Mar 13, 2025$887.44Up 4.1%
Mar 7, 2025$852.78Up 7.9%
Mar 6, 2025$790.20Down 2.2%
Mar 2, 2025$808.01Down 1.1%
Mar 1, 2025$816.84Up 22.0%
Feb 23, 2025$669.49Down 1.2%
Feb 19, 2025$677.31Down 14.7%
Feb 17, 2025$794.32Down 2.8%
Jan 30, 2025$817.62Up 2.6%
Jan 24, 2025$797.23Up 14.9%
Jan 19, 2025$694.14Down 11.6%
Dec 29, 2024$785.58Up 8.9%
Dec 25, 2024$721.49Down 12.6%
Dec 23, 2024$825.28Up 23.7%
Dec 20, 2024$667.19Down 0.1%
Dec 11, 2024$667.84Down 19.2%
Dec 8, 2024$826.75Up 4.7%
Nov 28, 2024$789.78Up 1.6%
Nov 13, 2024$777.00Down 11.7%
Nov 12, 2024$879.53Up 11.1%
Nov 3, 2024$791.72Down 0.6%
Oct 30, 2024$796.10Up 6.0%

About this product

The Sig Sauer M18 9mm with Holosun 507K is a handgun chambered in 9mm Luger, with a striker-fired action, a 3.9-inch barrel and a 17-round capacity. This listing is the armor Black 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
9mm Luger
Type
Handgun
Action
Striker-fired
Capacity
17 rounds
Barrel length
3.9 in.
Finish
Armor Black Cerakote
Configuration
With red dot
Condition
New
$749.9818% below usual
at Ridgeline Arms
Buy now at Ridgeline Arms(opens the store in a new tab)