ARRMA Granite GROM MEGA 380 4x4 Monster Truck RTR – Green, Battery & Charger Included

Compact power, big performance

Meet the ARRMA Granite GROM MEGA 380, a 1/18 scale monster truck designed to deliver genuine ARRMA capability in a portable package. The rugged green body (one of three color options) sits atop a chassis engineered for stability, while chunky tires hint at serious grip on a variety of surfaces. This isn’t a toy so much as a compact basher that can be taken along for on-demand action, indoors or out.

Designed to feel like its larger siblings, the GROM uses durable components and precise tolerances to create a confident, controllable driving experience. It’s built for beginners who want a friendly entry into RC bashing, as well as more seasoned drivers who appreciate a smaller, nimble platform that responds quickly to steering and throttle inputs.

What makes it stand out

• Awesome monster truck styling with three color choices
• Powerful Spektrum 2S LiPo battery and safe, easy-to-use Smart charger
• Easy body attachment and removal
• Enclosed drivetrain for all-terrain protection
• Reliable, high-quality hex hardware

Beyond the basics, the Granite GROM is packed with practical features that support real-world play sessions. Independent suspension and oil-filled, coil-over shocks help smooth out rough surfaces, while the 4WD transmission provides solid traction when traversing carpet, gravel, or grass. A tough front and rear bumper adds protection from bumps and scuffs during side hits or head-on snoops, and the clipless body mount design makes swapping shells quick and easy for different events or moods.

Performance you can rely on in a tiny package

• The enclosed drivetrain shields gears from dirt and debris during all-terrain runs
• High-quality hex hardware supports long-term durability and easier maintenance
• The Spektrum radio system keeps control responsive in busy basher environments

Whether you’re planning after-school bashes with friends, a quick break during a busy day, or a casual weekend run, the Granite GROM offers a compact, rugged experience. It’s designed to be easy to get into and exciting to drive, with a focus on durability, reliability, and real-world usability. Results can vary based on skill, terrain, and setup, but the GROM is designed to feel steady, predictable, and ready to unleash a little throttle when you are.