View of the Rossi Sentinel Ver.2 reinforced gearbox showing the right shell side, gear configuration, and motor alignment.
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Rossi Sentinel Ver.2 QD Reinforced AEG Gearbox with Motor & ETU

The Rossi Sentinel Ver.2 QD Reinforced Gearbox with Motor is a high-performance, pre-assembled drop-in upgrade featuring an integrated electronic trigger unit (ETU), durable steel-tooth piston, and a quick-change spring guide system. Built for reliability and performance, it is the ultimate power upgrade for Ver.2 AEG airsoft platforms.

  • Integrated Rossi ETU Ver.1: Provides crisp trigger response, electronic cycle control, and enhanced electrical efficiency.
  • Reinforced Ver.2 Structure: Features 8mm bearing bushings, 18:1 steel gears, and a 14.5 steel-tooth piston for extreme durability.
  • QD Spring Guide: Allows rapid, hassle-free spring changes without completely disassembling the gearbox shell.

59.90 € Tax included

48.306452 Tax excluded

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local_shipping FREE delivery to Estonian Parcel terminal from50€ (Omniva or DPD). Details

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Return policy
14-day return option after receiving the goods

Rossi Sentinel Ver.2 QD Reinforced AEG Gearbox with Motor – Elite Internal Upgrade

Upgrade your airsoft rifle to professional-grade performance with the Rossi Sentinel Ver.2 QD Reinforced Gearbox. Engineered by Rossi, this complete drop-in gearbox assembly comes pre-paired with a high-torque motor and advanced electronics, eliminating the complexity of custom shimming and wiring. Designed to handle high-stress environments, it is the perfect solution for players looking to boost reliability, rate of fire, and trigger response.

At the core of this system is the Rossi ETU Ver.1, which ensures instant trigger response and optimal cycle completion. The reinforced Version 2 shell houses robust 18:1 steel gears, an 8mm bearing bushing setup for smooth rotational efficiency, and a durable 14.5 steel-tooth piston designed to withstand high spring loads. Additionally, the Quick Detach (QD) spring guide system allows technicians and players to adjust muzzle velocity rapidly by changing springs on the fly. Complete with a matched high-performance motor, this drop-in unit delivers out-of-the-box tournament-ready reliability.

Key Features

  • Complete Drop-In Unit: Pre-assembled gearbox and motor combination ready for installation into compatible Ver.2 platforms.
  • Rossi ETU Ver.1: Advanced electronic trigger unit for superior trigger sensitivity and cycle protection.
  • QD Spring Guide System: Enables quick spring swaps without stripping down the complete gearbox.
  • High-Durability Internals: 18:1 gears, 8mm bearing bushings, and a 14.5 steel-tooth piston.
  • Optimized Performance: Engineered for high reliability, smooth operation, and consistent FPS output.

Technical Specifications

Brand Rossi
Product Type Complete Reinforced AEG Gearbox with Motor
Gearbox Version Ver.2 QD Reinforced Shell
Electronic Trigger Unit Rossi ETU Ver.1
Gear Ratio 18:1 Gear Set
Piston 14.5 Steel Teeth Piston
Bushings / Bearings 8mm Bearing Bushings
Spring Guide QD (Quick Detach) Spring Guide
Included Accessories Compatible AEG Motor included
Rossi
11568
New
1 Item
9501986115685

1. Orders & Shipping

What are the shipping methods?

We ship across Estonia using Omniva and DPD parcel terminals. You can also choose to pick up your order personally from our Tallinn store.

How fast will I receive my order?

In-stock products are usually dispatched within 1–2 business days. For items marked "On order" or "Tellimisel," delivery may take up to 15 business days.

Do you ship internationally?

Yes, we ship across Europe. To see the exact shipping cost, please enter your address during checkout or contact us directly.

3. Returns & Claims

Can I return a product if it doesn't fit?

Yes, a 14-day return right applies to products purchased from the online store. The product must be unused, in its original packaging, and with tags attached. Underwear and hygiene products cannot be returned.

Items purchased from the physical store cannot be returned for a refund; however, we can exchange them for a gift card or another product. Used products cannot be returned.

How do I return a product?

Please contact us at info@milshed.com to arrange the return method. In Estonia, returns via parcel terminal are usually free.

What happens if a product breaks?

Private individuals have a 2-year right to file a claim. If a defect appears within the first 6 months, it is assumed it existed at the time of purchase (manufacturing defect).