가스 직동식: 두 판 사이의 차이

<!-- The Swedish AG-42 Ljungman was the first successful production weapon using a simplified direct-impingement operating system. Another firearm using this system is the MAS-49. The premier current example is the AR-15/M16 rifle designed by Eugene Stoner. In the Stoner system, gas is routed from a port in the barrel directly to a chamber formed in the bolt carrier. The bolt acts as the piston and is sealed with small automobile-style piston rings.

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== 참고 서적 ==