2024 Keystone Cougar 22MLS vs 2025 Heartland Mallard M300

Detailed Comparison

Choosing between the 2024 Keystone Cougar 22MLS and the 2025 Heartland Mallard M300? Both are excellent options in the RV world, but they cater to different priorities.

In terms of footprint, the Keystone Cougar 22MLS stretches 22.5 ft while the Heartland Mallard M300 spans 37.5 ft. Weight-wise, the Heartland Mallard M300 is the lighter rig at 3,600 lbs versus 7,600 lbs.

For sleeping arrangements, the Keystone Cougar 22MLS offers room for 4 and the Heartland Mallard M300 can handle 9. The Heartland Mallard M300 benefits from 3 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Keystone Cougar 22MLS packs 53 gal of fresh water and 100W of solar. The Heartland Mallard M300 counters with 32 gal fresh water and 300W solar.

Price is often the deciding factor. The Keystone Cougar 22MLS starts at $75,000 MSRP, while the Heartland Mallard M300 commands $78,000 — a $3,000 gap.

Families with kids will appreciate the extra sleeping capacity and living space. Off-grid campers should pay close attention to solar wattage, battery capacity, and tank sizes. Weekend warriors will appreciate the easier towing and quicker setup of the lighter model.

At the end of the day, the best RV is the one that fits your travel dreams and budget. Either of these is a worthy choice.