Elastic ejector gunlock and installation method thereof

The invention discloses an elastic ejector gunlock and an installation method thereof. An elastic ejector can be conveniently and quickly assembled and disassembled. The elastic ejector gunlock comprises a head body, a breech, an extractor, an extractor pin, an extractor spring, the ejector, an ejector spring, an ejector pin and a firing pin. The extractor is located above the breech and is hinged to the head body through the extractor pin, the end of the head body is provided with a striker hole and an ejector hole, the striker hole is located right behind the extractor, the ejector hole is located below the breech and corresponds to the striker hole and the extractor, and the axes of the striker hole and the ejector hole are parallel to the axes of the breech and the firing pin. The ejector is arranged in the ejector hole in a clearance fit mode, the ejector spring is arranged between the ejector and the hole bottom of the ejector hole, the lower end of the ejector is provided with a strip-shaped ejector no