---
title: "Magpul PMAG Gen M3 20rd Magazine for AR-15, 5.56, Gray"
description: "$21.90 at Ridgeline Arms, 15% above usual."
type: "product"
category: "magazines"
brand: "Magpul"
landed_price: 21.9
currency: "USD"
best_store: "Ridgeline Arms"
deal_signal: "higher"
usual_price: 18.97
updated: "2026-10-19T13:43:00.000Z"
url: "https://trigger.deals/p/magpul-pmag-gen-m3-20rd-magazine-for-ar-15-556-gray-v5a"
site: "Trigger Deals"
data: "sample"
---

# Magpul PMAG Gen M3 20rd Magazine for AR-15, 5.56, Gray

> Lowest landed price: **$21.90** at Ridgeline Arms (★ 4.8, 18,240 reviews). 15% above usual (usual $18.97, the 90-day median). In stock, verified 2026-10-19 13:43 UTC.

- Item price $13.95 + $7.95 shipping. Landed price excludes sales tax.
- 90-day range: $15.59 to $21.90
- 2-year low: $15.59 (Sep 21, 2026)
- Price unchanged for 1 day (since 2026-10-19 09:48 UTC)
- MSRP: $22.34 (2% off)
- Brand: Magpul. Category: magazines.
- [Buy at Ridgeline Arms](https://trigger.deals/go/magpul-pmag-gen-m3-20rd-magazine-for-ar-15-556-gray-v5a?store=ridgeline-arms)

## Compare stores (6)

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 | $21.90 | Best price | $13.95 | $7.95 | In stock | 2026-10-19 13:43 UTC |
| Sawtooth Outfitters | ★ 4.5 | $23.24 | +$1.34 | $15.99 | $7.25 | Stock not reported | 2026-10-19 13:02 UTC |
| Lone Pine Outfitters | ★ 4.5 | $23.94 | +$2.04 | $14.99 | $8.95 | In stock | 2026-10-19 13:30 UTC |
| Cedar Hollow Arms | ★ 4.8 | $25.44 | +$3.54 | $20.49 | $4.95 | In stock | 2026-10-19 13:37 UTC |
| Keystone Shooting Supply | ★ 4.8 | $25.44 | +$3.54 | $19.49 | $5.95 | In stock | 2026-10-19 11:11 UTC |
| Copper Creek Ammo | ★ 4.7 | $26.44 | +$4.54 | $19.49 | $6.95 | In stock | 2026-10-19 12:39 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/magpul-pmag-gen-m3-20rd-magazine-for-ar-15-556-gray-v5a?days=730)).

| Date | Lowest landed price |
| --- | --- |
| Jul 27, 2026 | $19.46 |
| Aug 3, 2026 | $19.46 |
| Aug 10, 2026 | $18.80 |
| Aug 17, 2026 | $19.81 |
| Aug 24, 2026 | $19.81 |
| Aug 31, 2026 | $18.60 |
| Sep 7, 2026 | $18.60 |
| Sep 14, 2026 | $19.47 |
| Sep 21, 2026 | $15.59 |
| Sep 28, 2026 | $18.97 |
| Oct 5, 2026 | $18.97 |
| Oct 12, 2026 | $18.97 |
| Oct 19, 2026 | $21.90 |

## About this product

A 20-round magazine for the AR-15 in 5.56 NATO, with a polymer body in gray. Single magazine per order. Some states limit magazine capacity; check your local law before ordering.

## Specs

| Spec | Value |
| --- | --- |
| Fits | AR-15 |
| Caliber | 5.56 NATO |
| Capacity | 20 rounds |
| Material | Polymer |
| Color | Gray |
| Pack size | Single magazine |

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