AirsoftPro AWS / MB44xx ZERO complete upgrade set Gen. 4

AirsoftPro AWS / MB44xx ZERO Complete Upgrade Set Gen. 4 is an upgrade kit for Tokyo Marui AWS L96 airsoft sniper rifles and compatible WELL MB44xx series models. It includes a Gen. 4 ZERO CNC trigger box, lightweight hybrid piston, stainless steel spring guide with ball bearing, and a 9-mm upgrade spring. Thanks to its 90° piston sear, the set is designed for high-power upgrades.

122,60 € tax incl.

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: AIRSOFTPRO

Accessories

AirsoftPro AWS / MB44xx ZERO Complete Upgrade Set Gen. 4

The 4th generation of the AirsoftPro ZERO upgrade kit provides a complete solution for improving the performance and reliability of Tokyo Marui AWS sniper rifles. Compared to the previous generation, the trigger box has been completely redesigned and now features a robust construction with an integrated steel spring guide support. This provides secure guidance for the spring guide and increases the overall durability of the assembly, even when using powerful upgrade springs. The kit also includes a lightweight hybrid piston with a stainless steel sear, a rotating stainless steel spring guide with a ball bearing, and a 9-mm upgrade spring according to the selected variant. All components are designed to work together seamlessly, creating a reliable upgrade for demanding use.

Key Features

Complete Upgrade Kit

Includes a Gen. 4 ZERO CNC trigger unit, hybrid piston, rotating stainless steel spring guide with ball bearing, and a 9 mm upgrade spring according to the selected variant.

ZERO Trigger with 90° Piston Sear

The 90° sear prevents piston lift during cocking and allows safe use with powerful upgrade springs.

Adjustable Trigger Position

The two-piece trigger design allows horizontal trigger adjustment by approximately 7 mm for improved ergonomics.

Durable CNC Construction

The trigger housing is CNC machined from 6061-T6 aluminum alloy, while the highly stressed components are made from hardened and stainless steel.

Built for High-Power Upgrades

Designed for springs up to M160 and supported by available spare parts for long-term maintenance.

Technical Specifications

  • Compatibility: Tokyo Marui AWS L96, WELL MB4401, MB4402, MB4403 and other MB44xx series models
  • Body material: CNC-machined 6061-T6 aluminum alloy
  • High-stress component material: Hardened steel and stainless steel
  • Finish: Matte anodized
  • Piston sear: ZERO 90°
  • Trigger adjustment: Approx. 7 mm horizontal adjustment
  • Spring guide: Stainless steel with ball bearing
  • Spring: 9-mm upgrade spring (depending on selected variant)
  • Tested with: Up to M160 spring

Package Includes

  • 1× Gen. 4 ZERO CNC trigger unit
  • 1× Hybrid piston
  • 1× Rotating stainless steel spring guide with ball bearing
  • 1× 9-mm upgrade spring (depending on selected variant)
  • Mounting screws

Notice

The trigger mechanism does not support the original safety. Always follow safe firearm handling practices and exercise extra caution when handling the rifle.

VariantsAWS / MB44xx
ColorCombination
Body/receiver materialMetal
Piston headMetal
Spring guideMetal