Lancer Tactical M4 Proline Gearbox Set

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The Lancer Tactical M4 Proline Gearbox Set is designed to elevate the performance of your M4 or M16 airsoft rifle. Crafted by Lancer Tactical, a trusted brand in the airsoft industry, this gearbox set offers exceptional reliability and functionality. Constructed with a full metal Version 2 gearbox, this set ensures durability and longevity.

The full metal construction enhances the gearbox's strength, allowing it to withstand the rigors of intense airsoft battles. With the quick-change spring feature, you can easily adjust the muzzle velocity to meet different field or game requirements. Operating in electric automatic mode, this gearbox set provides semi-automatic, full-automatic, and safety firing modes. It offers versatility on the field, allowing you to adapt to various combat situations. Whether you prefer precise single shots or rapid-fire bursts, the Lancer Tactical M4 Proline Gearbox Set delivers. 

Designed to fit most M4/M16 frames, this gearbox set offers wide compatibility. It is a perfect upgrade option for airsoft enthusiasts who want to enhance their AEG's performance. The battery connector utilizes a Tamiya connection, providing a secure and reliable power supply. For optimal performance, we recommend using a 9.6v nunchuck NiMH battery (battery and charger not included). Equip your M4 or M16 airsoft rifle with the Lancer Tactical M4 Proline Gearbox Set and experience improved performance and reliability on the battlefield. Upgrade your AEG to dominate your opponents and ensure a thrilling airsoft experience.


  • Electronic flat trigger for rapid trigger response
  • Durable polycarbonate nozzle for consistent performance
  • Easy drop-in installation for convenient gearbox replacement or upgrade
  • Compatible with most AEGs utilizing a standard Version 2 gearbox
  • Sturdy full metal gearbox shell for enhanced reliability
  • Quick-change spring guide for easy spring adjustments
  • Reinforced piston with full steel teeth for increased durability
  • Smooth operation with 8mm steel ball bearings
For M4/M16 Frames
Full Metal
Lancer Tactical
Package Includes:
1x Gearbox
30 Day Return & Warranty

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