# Grand Design Momentum 399M

Momentum 399M is a travel trailer floor plan by Grand Design.

## Specs (2027 model year)

| Spec | Value |
| --- | --- |
| Length | 44 ft 10 in |
| Sleeps | 5 |
| Slide-outs | 3 |
| Dry weight | 19,170 lbs |
| GVWR | 23,500 lbs |
| MSRP | $190,338 |

## Model years

2027, 2026. Year-specific specs: `https://rvenvy.com/travel-trailers/grand-design/momentum/399m?year={year}`

## Floor plan tags

toy hauler

## Inventory

29 units currently for sale priced $119,995 to $156,995: https://rvenvy.com/travel-trailers/grand-design/momentum/399m/inventory

Floor plan diagram: https://images.rvenvy.com/71192e7e68c1e79f49e099ffbdf4a50c08da6bb987ad26f47459ace4635c8921/1024.webp

Canonical page: https://rvenvy.com/travel-trailers/grand-design/momentum/399m