AC6000 MKIII Muzzle Velocity Chronograph by AceTech

Do you want to know exactly what muzzle velocity and energy your weapon has? Check what effect the upgrade part you just installed has? Or simply be sure that you won't be sent home from the event because your weapon is too powerful? Then you should get your own chrono. The AC6000 MKIII is an advanced chronograph designed for measuring muzzle velocity, energy, and rate of fire. It uses patented LED lens and IR sensor technology to deliver highly precise readings. Compared to previous versions, it features a larger 36 mm measuring tube, suitable for wider airgun and airsoft barrels.
The 240×240 color LCD display clearly shows velocity, ROF, energy in Joules, BB weight, and more. It includes a memory of the last 25 shots and auto shut-off when idle or running on low battery. You can power the unit with 4 AA batteries or via USB-C cable (not included), allowing charging from a wall outlet or power bank. It also includes a 1/4-20 UNC tripod mount for stable setup.
Its plastic construction is rugged yet compact – perfect for both field and range use. 

Tips for Accurate Measurement

• Use high-quality BBs of consistent weight (commonly 0.20 g).
• Always wear eye protection (including observers).
• Place the chrono on a stable surface and shoot straight through the center of the measuring tube from short range.
• Ensure there is a safe backstop behind the chrono (no people, animals, or breakable property).
• Fire at least 3 shots to obtain an accurate average.
• After using gas-powered replicas, clean the sensors more frequently as per instructions.

Key Features

• Precise velocity and ROF readings:
  Suitable for airsoft, paintball, and airguns.
  
  
• Large measuring tube (36 mm):
  Supports a wide range of calibers and barrel types.
  
  
• Dual power source:
  4× AA batteries or USB-C (wall/power bank).
  
  
• Shot memory:
  Stores last 25 measurements.
  
  
• LCD display:
  Bright, colorful, and easy to read.
  
  
• Compact and lightweight:
  Ideal for outdoor use and shooting ranges.

Technical Specifications

• Velocity range: 30 – 400 m/s (90 – 1200 FPS)
• Rate of fire range: 100 – 5000 RPM
• Measuring tube diameter: 36 mm
• Power supply: 4× AA batteries or USB-C
• Display: Color LCD, 240 × 240 resolution, backlit
• Auto shut-off: When idle or low battery
• Supported calibers: 4.5 mm, 6 mm, 8 mm, 9 mm
• Mounting: 1/4-20 UNC tripod thread
• Dimensions: 130 × 108 × 61 mm
• Weight (without batteries): 285 g
• Charging port: USB-C
• BB profile memory: Up to 5 individual profiles
• Bluetooth: No

Package Contents

• AC6000 MKIII Chronograph
• User manual