# Grand Design Momentum M-Class 392M

Momentum M-Class 392M is a toy hauler floor plan by Grand Design.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 45 ft 11 in |
| Sleeps | 9 |
| Slide-outs | 3 |
| Dry weight | 16,982 lbs |
| GVWR | 22,500 lbs |
| MSRP | $165,287 |

## Model years

2026, 2025. Year-specific specs: `https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/392m?year={year}`

## Overview

The Grand Design Momentum M-Class 392M gives the garage the attention it deserves, with a roomy toy-hauler layout supported by a second patio awning and a third awning, all with LED lighting. Inside, a professional-grade stainless steel cooktop, extended countertop with barstools, Smart Sink, fireplace, and recliner sofa create a comfortable residential-style living space. A full bath, King Bed option, central vacuum, whole-house water filtration, and under-bed storage add practical touches, while six-point hydraulic leveling, H-rated tires, ABS brakes, and the MORryde CRE3000 suspension system support confident setup and towing.

## Floor plan tags

toy hauler

## Inventory

13 units currently for sale priced $112,992 to $149,999: https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/392m/inventory

## Pricing report

13 of 13 units have a posted asking price across 8 dealers. These are asking prices, not sale prices.

| Condition | Units | Median asking price |
| --- | --- | --- |
| New | 13 | $140,099 |

### Asking price distribution ($2,000 bands)

| Price band | Units |
| --- | --- |
| $111,000–$112,999 | 2 |
| $113,000–$114,999 | 0 |
| $115,000–$116,999 | 0 |
| $117,000–$118,999 | 0 |
| $119,000–$120,999 | 0 |
| $121,000–$122,999 | 1 |
| $123,000–$124,999 | 0 |
| $125,000–$126,999 | 0 |
| $127,000–$128,999 | 1 |
| $129,000–$130,999 | 2 |
| $131,000–$132,999 | 0 |
| $133,000–$134,999 | 0 |
| $135,000–$136,999 | 0 |
| $137,000–$138,999 | 0 |
| $139,000–$140,999 | 1 |
| $141,000–$142,999 | 1 |
| $143,000–$144,999 | 2 |
| $145,000–$146,999 | 1 |
| $147,000–$148,999 | 1 |
| $149,000–$150,999 | 1 |

- Median time on lot: 150 days (a lower bound — a unit may have been listed before we first saw it).
- 5 of 13 units cut their asking price in the last 30 days, by a median of 2%.

Floor plan diagram: https://images.rvenvy.com/bab74251332b8773f79c5b413b6158052731bfc95f5a1e3d3b1f21ff49ed8445/1024.webp

Canonical page: https://rvenvy.com/toy-haulers/grand-design/momentum-m-class/392m