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New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • Call for price
  • MESA, AZ
  • Mesa, AZ
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Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio   This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed!   The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops! *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.  
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • Call for price
  • LITTLE DEALER OF MESA, AZ
  • Mesa, AZ
View Details
Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio   This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed!   The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops! *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.  
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • $164,595.00
  • TROY OH
  • Troy, OH
View Details
Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio   Discover the ultimate combination of luxury, versatility, and adventure with the New 2026 Grand Design Momentum M-Class 399M, a top-of-the-line toy hauler designed for families, outdoor enthusiasts, and full-time RVers who demand space, comfort, and premium features. With its innovative layout, high-quality construction, and Grand Design’s reputation for reliability, the 399M is built for those who want the best in RV living and towing capability. The rear garage area is a highlight of the 399M, perfect for transporting motorcycles, ATVs, or other outdoor toys. This space converts effortlessly into additional sleeping or living areas with drop-down sofas and overhead beds, providing flexibility for family, guests, or extra storage. The main living area features theater seating, a tri-fold sofa, and a centrally located entertainment center with a large TV, creating a cozy yet open space for relaxation and socializing. Large panoramic windows fill the interior with natural light, making the space bright, inviting, and connected to the outdoors. The chef-inspired kitchen is equipped for convenience and efficiency, featuring solid-surface countertops, a three-burner cooktop, microwave, residential refrigerator, and ample cabinetry for storage. The dinette or optional free-standing table provides a versatile area for meals, games, or remote work, ensuring the Momentum 399M is as functional as it is stylish. The front master suite offers a private retreat with a walk-around king bed, dual wardrobes, overhead storage, and privacy doors. The full bathroom includes a spacious shower, vanity, and thoughtfully designed storage, providing residential-level comfort no matter where the road takes you. Built with Grand Design’s signature quality, the Momentum M-Class 399M boasts a durable chassis, premium components, and superior construction for long-lasting performance. Every feature is designed to make your travel experience smooth, comfortable, and worry-free. Top Reasons to Buy the Momentum M-Class 399M: Rear garage with convertible space for toys or extra sleeping areas Spacious living area with theater seating and entertainment center Chef-inspired kitchen with solid-surface countertops and storage Private front master suite with walk-around king bed Built with Grand Design’s durable construction and high-quality components   Why Buy from Campers Inn RV:Since 1966, Campers Inn RV has been a trusted leader in the RV industry, offering transparent pricing, expert guidance, and one of the largest selections of high-end toy haulers in the nation. Their knowledgeable team ensures a smooth, stress-free buying experience and provides ongoing support long after your purchase. Choosing Campers Inn RV means gaining a reliable partner dedicated to helping you enjoy every mile of your adventures with confidence, comfort, and peace of mind.
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • $164,995.00
  • KNOXVILLE TN
 View Details
Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio   This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed!   The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!    
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • $164,495.00
  • ST GEORGE,UT
 View Details
Call for details.
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • Call for price
  • LITTLE DEALER OF MESA, AZ
  • Mesa, AZ
View Details
NEW 2026 Grand Design Momentum 399M Toy Hauler — Elevate Every Adventure If you’ve been searching for a fifth wheel toy hauler that checks every box—power, luxury, workspace, entertainment, and real off-grid capability—the Momentum 399M was built for you. Grand Design’s flagship toy hauler welcomes thrill-seekers and full-timers alike with refined residential comforts and rugged durability that can keep up with wherever your journey leads. Load Up, Level Up, and Live LargeThe 12' 6" separate garage gives you the freedom to bring quads, dirt bikes, kayaks, e-bikes—anything that fuels your weekends. Once unloaded, transform the space into an extra suite with the optional Liftsuite system, complete with under-glow accent lights for a premium touch. And when you want to take the party outside, the side patio becomes your open-air living room—outfitted with a 65" TV, a 1.7 cu. ft. fridge, and an exterior griddle to keep everyone fed and smiling. A True Chef's Kitchen… Indoors or OutdoorsRainy day? No problem. The interior kitchen is a culinary playground, featuring a kitchen island, pull-out countertop extension, deep storage, pantry, and upscale appliances. Whether you’re prepping trail-day snacks or hosting friends for dinner, you’ll have the space and style to do it right. Relaxation Worth Coming Home ToKick back in the main living area where an L-shaped reclining sofa faces a 50" TV and ambient fireplace—the perfect setup after a long day on the trails. Need to squeeze in some work? The innovative hybrid desk/dinette with panoramic windows gives you a scenic remote-work station without sacrificing dining space. Your Private Bedroom RetreatAt the front of the coach, unwind in the spacious master suite with a queen bed slide (optional king!), a large wardrobe with washer/dryer prep, and a dresser with TV prep. Whether you’re weekend camping or living full-time, this bedroom delivers the storage, comfort, and separation you need. Built for All Seasons & All TerrainsEvery Momentum is engineered for durability and all-weather performance with a fully enclosed/heated underbelly, 5-sided aluminum cage, and triple-insulated garage floor. Ride smoother with the MORryde CRE3000 suspension, rubber pin box, and upgraded axle hangers. Inside, enjoy upscale touches like hardwood cabinet doors, hidden hinges, solid surface countertops, color-changing LED lighting, and even a central vacuum system. Four premium packages—including the Garage Package, Weather-Tek Package, and Interior Luxury Package—ensure you don’t just arrive… you arrive in style. Your Toys Deserve a Better Home. So Do You.If you’ve dreamed of a toy hauler that works hard, plays harder, and pampers you at the end of every drive, the 2026 Momentum 399M is the one you’ll want to see first—and last. Make it yours today at Little Dealer Little Prices—where your next adventure begins at a price you’ll feel great about. INVENTORY IMAGES MAY BE SHOWN. COLORS AND SPECS MAY VARY. CALL FOR DETAILS.
New 2026 Grand Design Momentum M-Class 399M image
New 2026 Grand Design Momentum M-Class 399M
  • Call for price
  • MESA, AZ
  • Mesa, AZ
View Details
NEW 2026 Grand Design Momentum 399M Toy Hauler — Elevate Every Adventure If you’ve been searching for a fifth wheel toy hauler that checks every box—power, luxury, workspace, entertainment, and real off-grid capability—the Momentum 399M was built for you. Grand Design’s flagship toy hauler welcomes thrill-seekers and full-timers alike with refined residential comforts and rugged durability that can keep up with wherever your journey leads. Load Up, Level Up, and Live LargeThe 12' 6" separate garage gives you the freedom to bring quads, dirt bikes, kayaks, e-bikes—anything that fuels your weekends. Once unloaded, transform the space into an extra suite with the optional Liftsuite system, complete with under-glow accent lights for a premium touch. And when you want to take the party outside, the side patio becomes your open-air living room—outfitted with a 65" TV, a 1.7 cu. ft. fridge, and an exterior griddle to keep everyone fed and smiling. A True Chef's Kitchen… Indoors or OutdoorsRainy day? No problem. The interior kitchen is a culinary playground, featuring a kitchen island, pull-out countertop extension, deep storage, pantry, and upscale appliances. Whether you’re prepping trail-day snacks or hosting friends for dinner, you’ll have the space and style to do it right. Relaxation Worth Coming Home ToKick back in the main living area where an L-shaped reclining sofa faces a 50" TV and ambient fireplace—the perfect setup after a long day on the trails. Need to squeeze in some work? The innovative hybrid desk/dinette with panoramic windows gives you a scenic remote-work station without sacrificing dining space. Your Private Bedroom RetreatAt the front of the coach, unwind in the spacious master suite with a queen bed slide (optional king!), a large wardrobe with washer/dryer prep, and a dresser with TV prep. Whether you’re weekend camping or living full-time, this bedroom delivers the storage, comfort, and separation you need. Built for All Seasons & All TerrainsEvery Momentum is engineered for durability and all-weather performance with a fully enclosed/heated underbelly, 5-sided aluminum cage, and triple-insulated garage floor. Ride smoother with the MORryde CRE3000 suspension, rubber pin box, and upgraded axle hangers. Inside, enjoy upscale touches like hardwood cabinet doors, hidden hinges, solid surface countertops, color-changing LED lighting, and even a central vacuum system. Four premium packages—including the Garage Package, Weather-Tek Package, and Interior Luxury Package—ensure you don’t just arrive… you arrive in style. Your Toys Deserve a Better Home. So Do You.If you’ve dreamed of a toy hauler that works hard, plays harder, and pampers you at the end of every drive, the 2026 Momentum 399M is the one you’ll want to see first—and last. Make it yours today at Little Dealer Little Prices—where your next adventure begins at a price you’ll feel great about. INVENTORY IMAGES MAY BE SHOWN. COLORS AND SPECS MAY VARY. CALL FOR DETAILS.
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