| 摘要 |
A noise suppressed firearm includes a closed chamber of fixed volume in communication with the barrel bore at a location nearer the breech than the muzzle. The closed chamber communicates with the barrel bore through passage means having a cross-sectional area at least as large as the barrel bore. The passage means communicates with the barrel bore at a location measured from the breech not greater than about 30% of the barrel length.
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