1. Material: High-impact resistant polymer.

2. Effective firing range: ≥ 6 meters.

3. Initial velocity: ≥ 165 meters/second.

4. Continuous firing capability: 4 shots.

5. The main body must have a built-in laser sight that cannot be detached.

6. The trigger must have a safety mechanism to prevent accidental triggering by fingers and to prevent accidental activation due to falls or impacts.

7. Effective targets: Humans or animals.

8. Dimensions: Length ≤ 195mm, Height ≤ 130mm, Width ≤40mm.

9. Weight: Main unit ≤ 350 grams, Firing tube modular unit ≤ 200 grams.

10. Temperature range: -20℃ to 60℃.