# Grand Design Momentum M-Class 392M

M-Class 392M is a fifth wheel floor plan by Momentum (Grand Design).

## Specs (2025 model year)

| Spec | Value |
| --- | --- |
| Length | 45 ft 11 in |
| Sleeps | 11 |
| Slide-outs | 0 |
| GVWR | 22,500 lbs |
| MSRP | $142,456 |

## Model years

2025. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/grand-design/momentum/m-class-392m?year={year}`

## Floor plan tags

toy hauler

## Inventory

3 units currently for sale priced $119,991 to $121,888: https://rvenvy.com/fifth-wheel-trailers/grand-design/momentum/m-class-392m/inventory

Floor plan diagram: https://images.rvenvy.com/14d70157abc2b9d901593f0a8e0fe8e2e2d9b455915b3e41955a5c375a2a23e4/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/grand-design/momentum/m-class-392m