Alex Kidwell
(240) 405-7790
11109 Angleberger Rd
Thurmont Maryland 21788

2026 Grand Design Momentum M-Class 344M

Price:
Call for Pricing
  • Year: 2026
  • Make: Grand Design
  • Model: Momentum M-Class
  • Condition: New
Description

Grand Design Momentum M-Class toy hauler 344M highlights:

  • Dual Opposing Slides
  • Two Power Awnings
  • 11' Separate Garage
  • Fireplace
  • Kitchen Pantry

 

Spend your days at the campground kicking up mud with this toy hauler in tow! once you've unloaded your toys from the ramp door, you can use the 60 gallon fuel station to fill up and head out on a trail! The overhead bed provides a place for guests to sleep, and there is an optional Liftsuite System for more sleeping space if needed. There is even an optional half bath here if you choose to make this space more accommodating. Head to the middle kitchen and living area where you'll enjoy generous counter space to prep meals, a spacious 20 cu. ft. refrigerator, an L-shaped sofa with recline, plus a hybrid desk/dinette that will serve as a dining or working space. The dual entry bath creates a front master bedroom you are sure to love. There is a queen bed with an optional king bed, plenty of overhead storage, and a wardrobe slide to keep your things organized. 

 

With any Momentum M-Class toy hauler by Grand Design, you will enjoy luxury at every turn! They have been constructed to a superior standard with a thermal roof design, triple insulated main floor and garage floor, and a Rail-Tite underbelly seal that will allow you to camp in all elements. Each model also features an 8' 5" wide body chassis with a wide rail design, no wheel wheels, and a dovetail entry for easier loading. The Stealth A/C system provides maximum cooling power, and the CRE3000 suspension system means you can enjoy a smooth tow each time. You will love the luxurious interior with a professional grade stainless steel cooktop, interior color changing LED accent lighting, a fiberglass shower with a glass door, and solid surface countertops. 

  • Bath and a Half
  • Front Bedroom
  • Loft
  • Two Entry/Exit Doors
  • 1/2 BATH GARAGE
  • 20cu.ft. FRIG (inverter prep solar panel 50 amp contrl
  • bluetooth mod
  • dock ports)
  • 2ND BEDROOM 15K A/C
  • 3RD A/C PREP
  • 3RD GARAGE 15K A/C
  • 6K WATT GENERATOR
  • 8K AXLE W/ ABS DRUM BRAKES
  • ARTISAN INT DECOR
  • AUX FRESH WATER TANK 40GALS
  • DPU
  • EXTERIOR ENT CENTER
  • EXTERIOR PACKAGE
  • GARAGE PACKAGE
  • GARAGE SUITE
  • GARAGE TV LED HD
  • GEN III 3 SEASON DOOR W/ SLIDING WINDOWS
  • HEAT PUMP
  • KITCHEN PWR FAN W/RAIN SENSOR
  • M CLASS GRAPHICS
  • M- CLASS LUXURY INTERIOR PACKAGE
  • MOMENTUM PATIO CHAIRS
  • OMNI CONNECT
  • REAR ALUMINUM DECK W/PWR AWNING
  • ROCKFORD FOSGAGTE STAGE 1 STERO
  • RVIA SEAL
  • SAFERIDE RV ROADSIDE ASSISTANCE
  • SOLAR ½ PACKAGE
  • UNDER UNIT LED LIGHT KIT
  • UPGRADED COOPER H-RATED TIRED W/ 17.5"WHEELS
  • WEATHER- TEK INSULATION PACKAGE
Disclaimer

____________________________________________________________________________

NOTE: ALL DEALS POST 9/10/25 WILL HAVE A $499 DOCUMET FEE APPLIED TO  THE SALE.

NO EXCEPTIONS.

For eBay and out of state sales final payment is due in CASH or PRE-ARRANGED WIRE TRANSFER ONLY !

INITAIL DOWN PAYEMENTS ARE NON-REFUNDABLE! BUT THEY ARE TRANSFERABLE TO ANOTHER RV OR OUR STORE. THEY ARE DUE NO LATER THAN 24 HOURS AFTER THE AUCTION ENDS, OR WHEN YOU CHOOSE BUY IT NOW.

If you have any questions or I can be of any assistance, feel free to call my cell phone.

Watch this to learn more about Buying AS IS at Beckley’s

 https://www.youtube.com/watch?v=W83w2-zFKyE

 All used RVs are sold one of three ways:

AS-IS SALES:

The RV is being sold just AS-IT -IS.  Not as it once was, not as it could be. AS -IS. We do not perform any work to it whatsoever. That does not mean that it has issues (I fully disclose any that I have found or am aware of, in the ad). As hectic as the RV business has been in the last few years, we do not have the time to put every RV through the shop.  Customers can save a lot of money on the older wholesale RV’s by doing some work themselves.

FULL PREP or PDI (Pre-Delivery Inspection), including a 90 Day warranty:

This means that we run through a checklist of 164 inspection Items (far more than most dealers do) We make sure that everything works properly and all systems are safe (ex: pressure testing the LP gas system, water system etc.) These RV’s come with a FULL SHOWTHROUGH by me on your day of pickup at our Thurmont, MD location. Please note pickup hours in photo section. These also come with a 90 DAY limited warranty that we purchase for you from a nationwide warranty company. It is good anywhere in North America (Canada & USA).  This also makes you eligible for an extended warranty if offered for that coach.

MARYLAND INSPECTION and/or APPLIENCE PREP.

This means that at our expense we perform a MD state safety inspection (guaranteed to pass in your state). We may also offer an appliance prep where upon we check, fix and/ or replace any appliances that the RV has. Applince preparations provide you with peace of mind that the components work on date of pickup. There is no warranty on the items. This does not include Generators.

MD inspections are offered for any RV we sell in addition to the sale at customer’s request. The state of MD sets the rate time that is charged. Please call for more info.

 When RV’s are sold with “MD Inspection and Appliance prep” they are otherwise AS-IS no warranty. Any additional work you want done on the RV is a service ticket and must be booked after the sale.

 

Terms of the sale:

SALES IN MARYLAND:

If you are purchasing the RV from the state of MD I must collect tax, tag and title fees in addition to the sale. If you are purchasing a AS-IS RV and you’re a MD resident,  you must have our shop preform a MD inspection and if needed, fix or repair any needed issues.  

OUT OF STATE:

Your final out the door price  is your winning bid plus $50 for a temp tag, good for 60 days and All deals post 9/10/25 will have a $499 DOCUMENT FEE APPLIED

TAXES:

We do not collect taxes for out of state sales unless there is a loan secured with the vehicle.

Final payment for RV can be made in CASH or PRE-ARRAGNED WIRE TRANSFER ONLY! No exceptions. We take a maximum of $1000 on a card of any type (PayPal is considered a card).

TRUCK CAMPERS must have MD 6% sale tax collected on pickup. This is not included in price.

MAINTINENCE:

As with any used camper you buy from us or anyone else you should seal it up by doing the seasonal maintenance as you would any RV. Check your seals at least 4 times a year. That way you know it’s ready to go camping correctly from the start.

EQUIPTMET NEEDED TO PICKUP A TOWABLE RV:

BRAKE CONTROLLERS: You must have a brake controller for most pull behind campers. I mark this on my checklist I send you. If you do not have a brake controller please let me know up front and we can go over options. You should have a brake controller installed BOFORE coming to pickup  your camper.

Just a reminder WE DO NOT SHIP! If you choose to have your RV shipped, by a 3rd party shipper, you must arrange the shipping. Beckley’s is happy to work with whomever you use as a shipper, but for liability reasons we do not arrange shipping.  We NEVER give titles to the shipper.  Check www.USHIP.com  or www.shiply.com for fast quotes.

As with most of my eBay auctions, I go to great lengths to describe accurately the items I am listing and point out any issues it may have. If the camper is being sold AS IS it is JUST AS IT IS. We do check tire pressure and lights to make sure they work before leaving but if they do not work there is no repair. I just inform you of such before pickup. If you choose to have it fixed or fix it yourself you may.

I do NOT leak test the propane nor do I pressure test the water system. If you would like to have that done it can be if you let me know ahead of time, for a nominal charge. 

I pride myself in being very up front with everyone, I want you to know up front what it is you are buying. I see many listings on ebay for units 5 years and older. Having experience of knowing what I am looking at, I see obvious delamination, leaks, and needed repairs in the pictures. But its never mentioned in the description. Customers are always emailing me and asking for a unit that has not had any leaks.  Let us be honest, any RV older than a few years, has had a leak somewhere.  It may have just been a vent left open, it may be a leak with cosmetic damage or It could have been severe and caused structural failure.

 Accidents? Even the most careful RV owner has scraped a tree branch at some time in their travels. I look at it as my job to accurately describe to you the RV’s that I am selling. When I identify there is a leak, soft wall or damage I put it in my ad. If you are interested in a RV that has never had any leaks call me we have over 400 new units with a warranty  in stock!

Options and Standard Features
Basic Information
  • Year: 2026
  • Make: Grand Design
  • Model: Momentum M-Class
  • Trim: 344M
  • Stock Number: 51917
  • VIN: B04547
  • Condition: New
  • Dry Weight: 15138
  • Type: Toy Hauler - Fifth Wheel
  • Sleeping Capacity: 5
  • Length (Feet): 39
  • Construction Body Material: Aluminum
  • Sidewall Construction: Fiberglass
  • Dry Weight (kg): 6866.6
  • Dry Weight (lbs): 15138
Bedroom / Bath
  • Bathroom
  • Bathroom Flooring Type: Vinyl
  • Bathroom Location: Center
  • Bathroom Medicine Cabinet
  • Bathroom Mirror
  • Bathroom Vent / Fan System
  • Full Size Master Bedroom Closet
  • Master Bedroom
  • Master Bedroom Door Style: Conventional Door
  • Master Bedroom Flooring Type: Vinyl
  • Master Bedroom Location: Front
  • Master Bedroom Mirror Doors
  • Number Of Bathrooms: 1
  • Number Of Bunk Beds: 1
  • Number Of Queen Size Beds: 2
  • Shower
  • Shower Door Type: Plastic / Glass
  • Toilet
  • Toilet Type: Porcelain
Cargo / Storage
  • Pass-Thru Storage
  • Cargo Area Auxiliary Gas Tank
  • Cargo Area Auxiliary Gas Tank Capacity (gal): 60
  • Cargo Area Auxiliary Gas Tank Capacity (lbs): 227.1
  • Cargo Area Dimensions
  • Cargo Area Length (in): 132
  • Cargo Area Length (mm): 3352.8
  • Cargo Area Rear Door
  • Cargo Area Rear Door Style: Ramp Door
  • Cargo Area Storage Cabinets
  • Cargo Area Tiedown / Tracks
  • Diamond Plated Cargo Area Finish
  • Interior Cargo Area Access Door
Comfort
  • Fireplace
  • Heater
  • Sofa
  • Number Of Sofas: 3
  • Number Of Convertible / Sofa Beds: 1
  • Air Conditioning Type: Automatic
  • Reclining Sofa
  • Sofa Material: Vinyl
  • Heater (BTUs): 35000
  • Heater Type: Automatic
Convenience
  • Power Vent Fan
  • Sky Light
  • Roof Vents
  • Central Vacuum System
  • Leveling Jack Type: Front Power / Rear Power
Drivetrain
  • Number Of Axles: 2
Electrical / Generator
  • Exterior Plugs
  • Ground Fault Plugs
  • Battery
  • Air Conditioning Prewiring
  • Heat Prewiring
  • Battery Converter Amps: 75
  • Battery Power Converter
Entertainment
  • Television
  • Radio
  • Speakers
  • TV Antenna Prewiring
  • Cable Prewiring
  • Satellite Prewiring
  • Number Of Radios: 1
  • Number Of Televisions: 2
  • Speaker Location(s): Exterior
Exterior
  • Exterior Flood Lights
  • Exterior Ladder
  • Exterior Shower
  • Retractable Roof Antenna
Holding Tanks
  • Water Capacity (Gallons): Over 100
  • Fresh Water Holding Tank Gauge
  • Gray Water Holding Tank Gauge
  • Black Water Holding Tank Gauge
  • Holding Tanks
  • Number Of Fresh Water Holding Tanks: 1
  • Number Of Gray Water Holding Tanks: 2
  • Number Of Black Water Holding Tanks: 1
  • Total Black Water Tank Capacity (gal): 52
  • Total Black Water Tank Capacity (l): 196.8
  • Total Fresh Water Tank Capacity (gal): 140
  • Total Fresh Water Tank Capacity (l): 530
  • Total Gray Water Tank Capacity (gal): 104
  • Total Gray Water Tank Capacity (l): 393.7
Interior
  • Interior Color: ARTISAN
  • Interior Wood Finish
  • Wallpaper
  • Living Area Location: Center
Kitchen
  • Oven/Stove Overhead Fan
  • Microwave Oven
  • Sink / Faucet
  • Kitchen / Living Area
  • Oven / Stove
  • Refrigerator
  • Sink Cover / Cutting Boards
  • Number Of Oven Burners: 4
  • Oven / Stove Layout: Oven / Stove
  • Kitchen / Living Area Flooring Type: Vinyl
  • Kitchen Location: Center
  • Refrigerator Power Mode: Electric
  • Refrigerator Size: Full-Size
Safety
  • Smoke Detector
  • Carbon Monoxide Detector
  • Propane Alarm
  • Emergency Exit(s)
Slide-Outs & Awnings
  • Slide Outs: 3
  • Awnings: 2
  • Slideouts
  • Awning
  • Power Retractable Slideout
  • Power Retractable Awning
  • Awning Length (ft): 28
  • Awning Length (m): 8.5
Specifications
  • Freeze Proof Insulation
  • GVWR (kgs): 8618.4
  • GVWR (lbs): 19000
  • Height (in): 162
  • Height (mm): 4114.8
  • Hitch Weight (kgs): 1496.9
  • Hitch Weight (lbs): 3300
  • Interior Height (in): 101
  • Interior Height (mm): 2565.4
  • Length (ft/ft): 39
  • Length (ft/in): 11
  • Length (in): 479
  • Length (m): 12.2
  • Length (mm): 12200
  • Number of Doors: 2
  • Payload Capacity (kgs): 1751.8
  • Payload Capacity (lbs): 3862
  • Width (in): 101
  • Width (mm): 2565.4
Suspension / Braking / Wheels
  • Spare Tire Location: Exterior Mounted
  • Wheels Composition: Aluminum
  • Tire Brand: Cooper
  • Rear Tire (Full Spec): ST215/75R17.5 LRH Cooper Tires
  • Rear Tire Aspect Ratio: 75
  • Rear Tire Speed Rating: H
  • Rear Tire Width: 215
  • Rear Wheel Diameter: 17.5
  • Brakes
  • Wheels
  • Tires
  • Spare Tire
  • Front Brake Type: Not Applicable
  • Rear Brake Type: Electric Drum
Towing
  • Hitch Lights
Utility Hookups
  • Number Of Propane Tanks: 2
  • Total Propane Tank Capacity (gal): 14.2
  • Total Propane Tank Capacity (lbs): 60
  • Water Heater Tank
  • Washer / Dryer Prewiring
  • Propane Tank(s)
  • Propane Tank Gauge
Contact
Beckley's RV - eBay
11109 Angleberger Rd
Thurmont Maryland 21788
  • Hours
  • Mon-Fri:09:00 AM-07:00 PM EST
  • Saturday:09:00 AM-04:00 PM EST
  • Sunday:Closed
Terms
We make every effort to present information that is accurate. However, it is based on data provided by the vehicle manufacturer and/or other sources and therefore exact configuration, color, specifications & accessories should be used as a guide only and are not guaranteed. We are not liable for any inaccuracies, claims or losses of any nature. Inventory is subject to prior sale and prices are subject to change without notice and cannot be combined with any other offer(s). The price for listed vehicles as equipped does not include other charges such as: License, Title, Registration Fees, State or Local Taxes, Smog Fees, Credit Investigation, Optional Credit Insurance, Physical Damage of Liability Insurance, Delivery Fees, Finance and/or Documentation Fees. Any and all differences must be addressed prior to the sale of this vehicle.