# Arrma Big Rock 4X4 3S BLX: specs and price

**Price (US):** $349.99 (AMain Hobbies product page for ARA4312V3 lists "Price: $349.99". The manufacturer (arrma-rc.com) page for this exact SKU is marked "Discontinued / This Item is No Longer Available" and shows no price.), as of 2026-07-11. Among the 8 rc cars we track it is #4 cheapest of 8; category median $350.
**Brand:** Arrma
**Deskmark:** Silver Deskmark — pay-blind category standing 76/100, #2 of 4 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $349.99 |
| Brand | Arrma |
| Scale | 1/10 |
| Vehicle type | monster-truck |
| Drive type | 4WD |
| Motor type | brushless |
| Top speed mph | 50 |
| Motor kv | 3200 |
| Ready to run | Yes |
| Waterproof electronics | Yes |
| Battery included | No |
| Length inches | 20.24 |
| Weight grams | 2835 |

## Where it stands

At $350, the Arrma Big Rock 4X4 3S BLX is #4 cheapest of the 8 rc cars we track, where the median is $350. On the spec sheet, its drive type of 4WD is the highest of the 9, its length inches of 20.24 is below the median of the 7, and its top speed mph of 50 is at the median of the 4.

## Frequently asked questions

**How much does the Arrma Big Rock 4X4 3S BLX cost?**

The Arrma Big Rock 4X4 3S BLX has a US price of $349.99 (AMain Hobbies product page for ARA4312V3 lists "Price: $349.99". The manufacturer (arrma-rc.com) page for this exact SKU is marked "Discontinued / This Item is No Longer Available" and shows no price.), as of 2026-07-11.

**How does the Arrma Big Rock 4X4 3S BLX compare on price?**

At $350, the Arrma Big Rock 4X4 3S BLX is #4 cheapest of the 8 rc cars we track, where the median is $350.

**What are the Arrma Big Rock 4X4 3S BLX's key specs?**

Arrma Big Rock 4X4 3S BLX (Arrma): scale 1/10, vehicleType monster-truck, driveType 4WD, motorType brushless, topSpeedMph 50. Full sourced spec sheet verified 2026-07-11.

Source: https://www.arrma-rc.com/en/product/arrma-1-10-big-rock-3s-4x4-rtr-brushless-monster-truck-black/ARA4312V3.html (arrma-rc.com, accessed 2026-07-11)
Corroboration: https://www.amainhobbies.com/arrma-big-rock-4x4-v3-3s-blx-1-10-rtr-brushless-monster-truck-black-ara4312v3/p1250113 (accessed 2026-07-11)
Canonical: https://frontdeskreview.com/product/rc-cars/arrma-big-rock-4x4-3s-blx/
Cite: Per The Front Desk Review, the Arrma Big Rock 4X4 3S BLX price of record was $349.99 as of 2026-07-11 — https://frontdeskreview.com/product/rc-cars/arrma-big-rock-4x4-3s-blx/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl