E9800-X Shooting Chronograph Airsoft BB Speed High-Precision Tester Measure Tool

★ Multifunctional testing results in firing speed, muzzle speed, firing dynamic energy and shooting distance. Firing Speed: 0-3600 b/minute(0-60 b/second). Firing dynamic Energy: 0-500J. 1x E9800-X High-Precision Shooting Chronograph.

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