The AirsoftPro VSR Zero Upgrade Trigger Gen. 5 is a CNC trigger unit built to improve rigidity and precision on VSR sniper platforms, with compatibility extended to CYMA CM.700, CM.701, and CM.708 rifles. This fifth generation features a fully redesigned body with beveled edges, an included safety lever, adjustable trigger position, and a construction meant to handle stronger springs than the stock trigger unit. AirsoftPro also states that the body is made from 6061-T6 aluminum, key components are hardened steel, and the unit has been tested up to M170 springs.

• Construction: CNC-machined 6061-T6 aluminum body with matte anodized finish.
• Critical components: piston sear, trigger sear, and spring guide stopper in HRC 28-32 hardened steel.
• Adjustment: trigger position adjustable with 7 mm travel.
• Safety: safety lever included and can be installed or omitted.
• Assembly: 28 parts in total for a much stronger platform than the stock unit.
• Installation: declared easy to install in under 10 minutes, with mounting screws and safety lever assembly included.
• Compatibility: Marui VSR-10, JG BAR-10 with possible screw adaptation on newer models, Well MB02, MB03, MB07, MB09, MB10, MB11, CYMA CM.700, CM.701, and CM.708.
• Limitations: not suitable for M24, Marui AWS, Well MA4401, MA4402, or Well L96.

This trigger group is aimed at users who want a more reliable base as they increase rifle performance. The real advantage is not just the trigger feel, but the ability to support more demanding builds without relying on weak alloy units. On VSR systems, the Zero Trigger concept holds the piston at 0 degrees, increasing the contact surface and improving retention under heavier spring loads.

Box contents

• 1 VSR Zero Upgrade Trigger Gen. 5
• Mounting screws
• Safety lever assembly

How to use
Install the unit only on compatible platforms and make sure the piston has the correct vertical 0-degree catch. On CYMA CM.700 the unit is compatible, but the safety lever cannot be used; on other VSR platforms, the piston may also need to be replaced. After installation, always check engagement, trigger smoothness, and the absence of abnormal friction.

Safety warnings

• Do not tamper with the trigger group or alter the contact surfaces.
• Use only with compatible components and correct installation.
• Always verify proper piston engagement before use.
• Do not use the rifle if the trigger or safety behaves abnormally.
• Keep away from heat sources, moisture, and impacts.
• Keep out of reach of children.
• Safety guidance falls under Regulation (EU) 2023/988 GPSR.