# Mossberg 590RM 12 Gauge 18.5in Black

**Brand:** Mossberg
**Category:** Pump-Action Shotguns
**Caliber:** 12 Gauge

## Specifications

- **Caliber:** 12 Gauge
- **Barrel Length:** 18.5"
- **UPC:** 015813502139
- **SKU:** UCHGBqI7

## Description

The Mossberg 590RM is a pump-action shotgun chambered in 12 gauge with an 18.5-inch barrel. It is magazine-fed, using a detachable 10-round box magazine rather than the traditional tube found on standard 590 variants. A 2.75-inch chamber, flat profile trigger, and adjustable stock are noted across listings, with a matte black finish on most configurations.

### Key Specifications
- **Brand**: Mossberg
- **Model**: 590RM
- **Caliber**: 12 Gauge
- **Action**: Pump Action
- **Capacity**: 10+1
- **Barrel Length**: 18.5 inches
- **Color/Finish**: Black

### Detailed Features
- Detachable 10-round box magazine feed system
- 18.5-inch barrel in a stand-off configuration
- 2.75-inch chamber
- Adjustable stock
- Compatible with Magpul MBUS 3 sights on equipped variants

## Frequently Asked Questions

**Q: What caliber is the 590RM?**

A: The 590RM is chambered in 12 gauge.

**Q: Who makes the 590RM?**

A: The 590RM is made by Mossberg.

**Q: What type of firearm is the 590RM?**

A: It is a pump-action shotgun with a matte black finish and detachable box magazine feed system.

**Q: What is the barrel length of the 590RM?**

A: The 590RM has an 18.5-inch barrel.

**Q: How many rounds does the 590RM hold?**

A: It holds 10+1 rounds via a detachable 10-round box magazine.

**Q: Where can I buy the 590RM?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The 590RM draws consistent interest from users who want magazine-fed pump-action capability. The detachable box magazine system is the main talking point; owners who run it for patrol or home defense value the faster reload compared to tube-fed designs. The common complaint is that 12-gauge box magazines are bulkier than tube-fed configurations to stage and store.

Pump reliability on the 590RM is generally well-regarded, and owners credit Mossberg's track record with the 590 platform. The 18.5-inch barrel and stand-off configuration handle close-quarters roles without issue. The adjustable stock gets positive marks from users running the shotgun with body armor or in vehicle configurations.

The 590RM costs noticeably more than standard tube-fed 590 variants, and opinions divide on whether the magazine-fed capability is worth the price difference. Magazine availability and cost draw recurring complaints in owner discussions. Those with a specific operational need for fast detachable-magazine reloads find the platform worth the investment; casual users often conclude the standard 590 serves better at lower cost.

## Pricing

**13 offers available**

| Vendor | Price |
|--------|-------|
| Buds Gun Shop | $816.99 |
| Grabagun Com | $819.99 |
| Shootingsurplus Com | $838.77 |
| Gritrsports Com | $852.99 |
| Centerfiresystems Com | $852.99 |
| Globalordnance Com | $867.43 |
| Impactguns Com | $868.29 |
| Deguns | $890.99 |
| Brownells | $896.99 |
| Selwayarmory Com | $917.49 |

*...and 3 more offers*

## Similar Products

- [Mossberg 590A1 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-590a1-12-gauge-18-5in-black/UCHGBroc)
- [Mossberg 590S 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-590s-12-gauge-18-5in-black/UCHGBtvH)
- [Mossberg 590R 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-590r-12-gauge-18-5in-black/UCHGBriY)
- [Mossberg 590RM Stand-Off 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-590rm-stand-off-12-gauge-18-5in-black/UCHGBqIq)
- [Mossberg 590R Stand-Off 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-590r-stand-off-12-gauge-18-5in-black/UCHGBriR)
- [Mossberg 500 Tactical 12 Gauge 18.5in](https://gunsnation.com/p/mossberg-500-tactical-12-gauge-18-5in/UCHGC0Sq)

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*Data from [GunsNation](https://gunsnation.com)*