| 摘要 |
The invention relates to a small arm system with an exchangeable barrel. The aim of the invention is to provide a small-caliber small arm for high-speed bullets (10) with an effective silencer. To this end, the arm is provided wi th an exchangeable barrel that is designed for a bullet (10') whose caliber is substantially larger than the bullet (10) for the small caliber but which ha s the same length and the same base dimensions. The bullet (10') for the exchangeable barrel is designed in such a manner that the projectile (7') ha s a muzzle velocity in the ultrasonic range while being sufficiently heavy to supply a sufficient muzzle energy. The different bullets (10, 10') for the original barrel and for the exchangeable barrel are designed differently so that a confusion of the bullets (10, 10') is impossible since the respective bullets (10, 10') cannot be completely inserted into the bullet chamber (20, 20') to which they do not pertain.
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