AirsoftPro AWS ZERO Upgrade Trigger Box Gen. 4

AirsoftPro TM AWS ZERO Gen. 4 Upgrade Trigger Unit is a CNC-machined trigger unit with a ZERO (90°) piston sear designed for high-performance upgrades of TM AWS (L96), WELL MB44xx, CYMA CM.703, and CM.707 sniper rifles. Compared to the previous generation, it features a completely redesigned construction, an adjustable trigger, an integrated steel spring guide support.

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ASPRO418

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Accessories

  • 15,86 € In Stock

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    ASPRO316

    AirsoftPro CNC stainless steel cylinder head for TM L96 AWS and WELL MB44xx airsoft sniper rifles is a durable upgrade part designed to improve the air seal and increase rifle performance. It is machined from a single piece of stainless steel on CNC machines, and its high-quality sealing minimizes air loss while maintaining consistent rifle performance.

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  • 23,89 € In Stock

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    ASPRO229

    AirsoftPro CNC aluminum BB feeder for TM L96 AWS and WELL MB4401 airsoft sniper rifles is a durable upgrade replacement for the original plastic loading arm. It is made from a CNC-machined aluminum alloy, offering greater durability and a longer service life. It is designed for Tokyo Marui L96 AWS and WELL MB4401 / MB4402 sniper rifles.

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  • 6,34 € In Stock

    : AIRSOFTPRO

    ASPRO291

    AirsoftPro upgrade spring for Tokyo Marui L96 AWS and WELL MB44xx airsoft sniper rifles with a M160 rating is a reinforced spring designed to increase the power of bolt-action sniper rifles. It is made from high-quality heat-treated spring steel with ground ends for smooth cocking. It is suitable for high-performance upgrade builds using reinforced CNC...

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  • 1,23 € 1,65 € In Stock
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    : AIRSOFTPRO

    ASPRO389

    AirsoftPro piston sear spring set for CNC trigger box is an original set of 2 replacement springs designed to restore the proper function of the trigger mechanism. It includes both the left and right spring, ensuring reliable return of the piston sear to its original position and maintaining correct trigger operation.

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  • 5,46 € 7,61 € In Stock
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    : AIRSOFTPRO

    ASPRO435

    AirsoftPro steel piston sear for the AWS ZERO (L96) trigger unit is an original replacement part designed for AirsoftPro ZERO CNC trigger units used in Tokyo Marui AWS and WELL MB44xx sniper rifles. Made from durable steel, it serves as a direct replacement for a worn or damaged piston sear. It is compatible only with Gen. 1, Gen. 2, and Gen. 3 trigger...

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  • 16,03 € 24,95 € In Stock
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    ASPRO447

    AirsoftPro CNC Steel Cylinder for AWS is a reinforced upgrade component for Tokyo Marui AWS (L96) airsoft sniper rifles and compatible WELL MB44xx models. Its all-steel construction significantly increases durability when using high-power upgrade springs and eliminates the risk of deformation or charging handle mount failure that can occur with standard...

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  • 24,91 € 35,95 € In Stock
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    ASPRO454-M140

    AirsoftPro ZERO upgrade set for TM AWS and WELL MB44xx includes a hybrid piston, stainless steel spring guide with bearing and 9mm upgrade spring for increasing the performance of Tokyo Marui AWS L96 and WELL MB44xx airsoft sniper rifles. The set is designed for use with the AirsoftPro AWS ZERO Gen. 4 trigger unit and provides a reliable foundation for a...

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AirsoftPro TM AWS ZERO Gen. 4 Upgrade Trigger Unit

The 4th generation AirsoftPro trigger unit features a completely redesigned construction developed for maximum durability and long service life when using powerful upgrade springs. The mechanism utilizes a ZERO (90°) piston sear, which eliminates piston tilting inside the cylinder, increases the contact surface, and significantly reduces stress on the entire mechanism. A new feature is the horizontally adjustable two-piece trigger, whose position can be adjusted by up to 7 mm after installation. The housing is machined from 6061-T6 aluminum alloy on CNC machines, while the most heavily stressed components are made from hardened steel. The trigger unit is supplied as a standalone component without a piston, spring guide, or spring. Proper function requires the use of a 90° piston.

Key Features

ZERO Piston Sear

The 90° piston sear prevents piston lift and misalignment inside the cylinder, improves reliability, and allows the use of stronger upgrade springs.

Adjustable Two-Piece Trigger

The trigger position can be continuously adjusted over a 7 mm range forward and backward using an easily accessible hex screw.

Durable CNC Construction

The housing is machined from 6061-T6 aluminum alloy with an anodized finish, while the piston sear, lever, and spring guide support are made from hardened steel (HRC 28–32).

Smooth and Reliable Operation

A ball bearing inside the trigger, stainless steel pins, and dual torsion springs ensure smooth trigger pull and reliable sear reset.

Ready for High-Power Upgrades

The mechanism has been tested with springs up to M160, features a fixed steel spring guide support, and replacement parts are available from the manufacturer.

Technical Specifications

  • Body Material: 6061-T6 Aluminum Alloy
  • Material of Stressed Components: Hardened Steel HRC 28–32
  • Pin Material: Stainless Steel
  • Finish: Matte Anodizing
  • Sear Type: ZERO (90°)
  • Trigger Adjustment: Horizontal, 7 mm Range
  • Number of Parts: 23
  • Tested With: Springs up to M160
  • Installation Time: Approximately 10 Minutes

Compatibility

  • CYMA CM.703
  • CYMA CM.707
  • Tokyo Marui AWS L96
  • WELL MB4401
  • WELL MB4402
  • WELL MB4403 and other MB44xx series models

Package Contents

  • 1× AWS ZERO Gen. 4 Trigger Unit
  • Mounting Screws

Warning

  • The trigger unit requires the use of a piston with a 90° sear.
  • It is not compatible with original 45° sear pistons.
  • The mechanism also does not support the original safety. Always follow safe firearm handling practices when using your airsoft gun.
ColorBlack
Body/receiver materialMetal