# Keystone Montana 3121RL

> Rear living room, kitchen island, master closet

3121RL is a fifth wheel floor plan by Montana (Keystone).

## Specs (2023 model year)

| Spec | Value |
| --- | --- |
| Length | 35 ft |
| Sleeps | 4 |
| Slide-outs | 3 |
| Dry weight | 12,367 lbs |
| GVWR | 16,350 lbs |

## Model years

2023, 2022, 2021, 2018. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/keystone/montana/3121rl?year={year}`

## Overview

The rear living layout keeps the bedroom tucked away at the front for real privacy, anchored by a King bed, walk-in closet, and thoughtful touches like elevated CPAP shelves, USB and 110V outlets bedside, and adjustable reading lights. The kitchen island gives you actual prep and gathering space, and the 5,000 BTU decorative fireplace makes the living area feel genuinely cozy rather than just functional. Full-timers consistently praise this floor plan for its carry capacity and livability — one owner reports no regrets after a year on the road — and the stackable washer/dryer prep, central vacuum, and Four Season Living Package with in-floor heating ducts back that up. SolarFlex 200 comes standard, with upgrade paths all the way to the 1200i-L for serious off-grid capability.

## We like

- Ceiling fan
- Walk-in closet

## Things to consider

- Limited counter space
- Fragile pendant lights
- Limited bedroom airflow
- Limited kitchen cabinets

## Floor plan tags

walk-in closet, rear living area, front bedroom

## Inventory

32 units currently for sale priced $31,998 to $59,995: https://rvenvy.com/fifth-wheel-trailers/keystone/montana/3121rl/inventory

Floor plan diagram: https://images.rvenvy.com/2c7d19fad99627ca341c8d559ab7cdaa227e9999c2b1529353ebb4458cce6691/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/keystone/montana/3121rl