---
title: "Sig Sauer M18 9mm, 3.9 in., 17rd, Black (Police Trade-In)"
description: "$425.98 at Ridgeline Arms, about usual."
type: "product"
category: "guns"
brand: "Sig Sauer"
landed_price: 425.98
currency: "USD"
best_store: "Ridgeline Arms"
deal_signal: "about"
usual_price: 426.72
updated: "2026-10-19T14:39:00.000Z"
url: "https://trigger.deals/p/sig-sauer-m18-9mm-39-in-17rd-black-police-trade-in-afn"
site: "Trigger Deals"
data: "sample"
---

# Sig Sauer M18 9mm, 3.9 in., 17rd, Black (Police Trade-In)

> Lowest landed price: **$425.98** at Ridgeline Arms (★ 4.8, 18,240 reviews). About usual (usual $426.72, the 90-day median). In stock, verified 2026-10-19 14:39 UTC.

- Item price $405.99 + $19.99 shipping to your FFL dealer. Landed price excludes sales tax and the dealer's transfer fee.
- 90-day range: $362.29 to $461.22
- 2-year low: $317.07 (Mar 26, 2025)
- Price unchanged for 14 days (since 2026-10-06 05:46 UTC)
- MSRP: $799.49 (47% off)
- Brand: Sig Sauer. Category: guns.
- [Buy at Ridgeline Arms](https://trigger.deals/go/sig-sauer-m18-9mm-39-in-17rd-black-police-trade-in-afn?store=ridgeline-arms)

## Compare stores (7)

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

| Store | Rating | Landed price | Versus best | Item price | Shipping | Stock | Verified |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Ridgeline Arms (best) | ★ 4.8 | $425.98 | Best price | $405.99 | $19.99 | In stock | 2026-10-19 14:39 UTC |
| Westbound Armory | ★ 4.7 | $437.48 | +$11.50 | $417.49 | $19.99 | In stock | 2026-10-19 14:40 UTC |
| Bayou Arms Co. | ★ 4.1 | $458.95 | +$32.97 | $438.95 | $20.00 | Stock not reported | 2026-10-19 14:24 UTC |
| Badlands Tactical | ★ 4.3 | $461.48 | +$35.50 | $446.49 | $14.99 | Stock not reported | 2026-10-19 12:44 UTC |
| Iron Mesa Armory | ★ 4.9 | $466.99 | +$41.01 | $466.99 | Free | In stock | 2026-10-19 12:18 UTC |
| Cedar Hollow Arms | ★ 4.8 | $480.49 | +$54.51 | $480.49 | Free | In stock | 2026-10-19 14:13 UTC |
| Palisade Sporting Goods | ★ 4.2 | $504.98 | +$79.00 | $469.99 | $34.99 | In stock | 2026-10-19 11:59 UTC |

## Price history

Lowest landed price across stores, weekly over the last 90 days (full daily history: [JSON API](https://trigger.deals/api/v1/products/sig-sauer-m18-9mm-39-in-17rd-black-police-trade-in-afn?days=730)).

| Date | Lowest landed price |
| --- | --- |
| Jul 27, 2026 | $452.28 |
| Aug 3, 2026 | $452.28 |
| Aug 10, 2026 | $452.28 |
| Aug 17, 2026 | $452.28 |
| Aug 24, 2026 | $404.23 |
| Aug 31, 2026 | $428.11 |
| Sep 7, 2026 | $461.22 |
| Sep 14, 2026 | $414.05 |
| Sep 21, 2026 | $414.05 |
| Sep 28, 2026 | $428.54 |
| Oct 5, 2026 | $423.39 |
| Oct 12, 2026 | $425.98 |
| Oct 19, 2026 | $425.98 |

## About this product

The Sig Sauer M18 9mm 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 black finish in the standard configuration, police trade-in. Guns ship to a licensed dealer (FFL) near you, who runs the background check and hands it over; their transfer fee is separate.

## Specs

| Spec | Value |
| --- | --- |
| Caliber | 9mm Luger |
| Type | Handgun |
| Action | Striker-fired |
| Capacity | 17 rounds |
| Barrel length | 3.9 in. |
| Finish | Black |
| Configuration | Standard |
| Condition | Police trade-in |

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