

🚀 Small Scale, Massive Impact – Own the streets and the trails!
The ARRMA 1/18 Granite GROM MEGA 380 is a compact yet powerful 4X4 monster truck featuring a 30 MPH top speed, Spektrum 2S LiPo battery with smart charger, and rugged metal gears. Designed for both beginners and seasoned RC enthusiasts, it offers waterproof electronics, independent suspension with oil-filled shocks, and a durable composite chassis. Ready-to-run out of the box with a 2.4GHz radio system and clipless body mounts, this truck blends portability with high-performance bashing, making it perfect for on-the-go fun and all-terrain adventures.
| ASIN | B0CPN1762Q |
| Additional Features | Portable |
| Age Range Description | 14+ |
| Are Batteries Required | Yes |
| Batteries are Included | Yes |
| Battery Description | Lithium-Ion Polymer |
| Best Sellers Rank | #44,329 in Toys & Games ( See Top 100 in Toys & Games ) #91 in Hobby RC Trucks |
| Brand Name | ARRMA |
| Color | Blue |
| Customer Reviews | 4.5 out of 5 stars 237 Reviews |
| Included Components | (1) ARRMA MEGA 380 28T Brushed Motor, (1) GRANITE™ GROM 4X4 Monster Truck RTR, (1) Spektrum 2.4GHz SLT2™ Transmitter, (1) Spektrum SX110 Waterproof Metal-Geared Servo, (1) Spektrum™ Waterproof SLT™ 2-in-1 25A ESC & Receiver |
| Item Dimensions | 12 x 9.9 x 7.9 inches |
| Item Height | 7.9 inches |
| Item Type Name | RC Truck |
| Item Weight | 1.8 Pounds |
| Manufacturer | ARRMA |
| Manufacturer Maximum Age (MONTHS) | 1500.0 |
| Manufacturer Minimum Age (MONTHS) | 168.0 |
| Material Type | Metal, Plastic |
| Maximum Speed | 30 Miles per Hour |
| Model Name | ARRMA RC Truck 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR |
| Model Number | ARA2102T1 |
| Model Year | 2023 |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Items | 1 |
| Operation Mode | Automatic |
| Power Source | Battery Powered |
| Scale | 1:18 Scale |
| Size | 12 inches x 9 inches x 7.9 inches |
| Theme | Truck |
| Toy Vehicle Form | Truck |
| Unit Count | 1.0 Count |
K**T
Quality truck
I think for the price point, this is the best value for the money. This truck is well built and pretty fast. It doesn't do the best on crawler terrain or taller grass. This is ok though, it wasn't meant to be a crawler. I have had it for several months and am not nice to it, hasn't broke yet. I also like the clip less body mounts. Definitely don't regret this purchase. The picture I posted is with bigger tires than it came with.
H**A
Fun RC Car!
I got this on sale for $108. This has been one of my better buys. I like this rc car. I got the V2. Downside being the plastic on one of the front outside axels failed and the axel popped out and disappeared somwhere. Waiting on the replacement metal parts now from Arrma ARA-311198($40 bucks). Upgrades add up quick!
V**N
Lots of fun
Awesome, fast, tough.
J**O
Coolest little Arrma Granite 1/18 scale truck
Received in brand new perfect condition. Very well packaged. I own quite a few buggies now. This is the smallest one of them all. Just unbelievable how well it performs. 2s works really well in theses sawed off jobs. I really enjoy driving this little guy around the house. It’s so small compared to my others and I’m afraid to take is outside. It might get lost or a bird might take it away. Not to mention all the Coyotes running around. But seriously this is a cool little hobby grade truck. I like it! Runs perfect and very happy with my purchase.
D**E
Good little thing for good price
This thing is bad@%%, we love it. Goes fast and easy to work.
Z**N
Great truck
Fun for teaching my son how to handle an RC. Can take a beating! He is 4 and fell in love with my larger Arrma. This thing zips, jump, and has taken every crash thrown at it. I suggest purchasing a larger battery and charger. The ones it comes with aren't the best but will work fine to start.
S**E
Just as fun as the big boys
*1st Thing, this must be a version 2, because there are tons of videos talking about it coming stock with plastic dogbones, differentials and all that. Not anymore, everything including the planetary gears in the diffs are metal (planetary gears look to be aluminum though). And also your Arrma logo on the front won't be white, I did that. Anyway, if you know about Arrma, it's Arrma tough, enough said. If you're new to the hobby, get it, you'll love it. It's tough as a tank, quick for it's size, runs smooth and quiet. If you charge the battery with the accompanied charger, get a higher wattage USB-C cord and use a high wattage charge block and you can charge the battery pretty quickly (less than an hour), otherwise plugging it in your laptop or something like that will take forever.
J**E
For kids yes adults that want a 1/18th hard NO
The body sucks the things impossible to clip on. Bought for my nephew so he can grow into it he’s younger (5) so I’m trying to teach him. He understands. Wish the body mechanism was just regular body clips. Other than that fun for kids if you’re an adult do not waste your time not as fun as it looks just but some batts for your 1/8ths over this lol
Trustpilot
1 month ago
1 month ago