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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0874559 (1986-06-16) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 0 |
An automatic shotgun choke is provided which is attached to the muzzle of a shotgun barrel and can be adjusted manually by a device mounted within and extending from upper portion of the choke so as to selectively produce a choked and unchoked muzzle. In a modification gas pressure from a fired shel
An automatic shotgun choke which comprises: (a) a shotgun barrel having an externally threaded muzzle and circumferentially spaced radially disposed gas ports extended therethrough spaced rearwardly from said muzzle; (b) a collar threaded on said muzzle of said shotgun barrel, said collar having a c
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