Connecting structure of a handguard for a firearm

Abstract

The invention discloses a connecting structure of a hand guard for firearms, which has the advantages of simple structure, convenient processing, quick assembly and disassembly, firm connection, reliable positioning and good assembly consistency of parts. A connection structure of a handguard for firearms, comprising a handguard and a lower receiver body, the cross-section of the handguard is polygonal, rectangular grooves are respectively provided on each surface of the handguard, and a connecting plate is also included. The connecting plate is located inside the handguard, and the lower surface of the connecting plate is provided with a boss, which corresponds to the rectangular groove on the bottom surface of the handguard, and each boss is clamped and fixed in the corresponding rectangular groove, and each boss is respectively A normal upper screw hole is provided, and a lower screw hole is provided corresponding to the upper screw hole on the lower receiver body, and the lower receiver body and each boss are fixedly connected by screws and screw holes to form a muff and a lower receiver. The fixed connection of the body.

Description

technical field [0001] The invention relates to the technical field of firearms, in particular to a connection structure of a glove of a firearm. Background technique [0002] In the prior art, screw connection is widely used between the muff and the lower receiver body. However, since the muff guard and the lower receiver body are made of aluminum alloy, it is easy to loosen during use by directly using screw connection. If the connection is firm, a wire threaded sleeve must be installed on the muff, which will not only increase the installation thickness of the muff, but also increase the complexity and difficulty of its processing technology due to the special structural characteristics of the muff. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a connection structure for the muff of firearms, which has the advantages of simple structure, convenient processing, quick assembly and disas...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, screw connection is widely used between the muff and the lower receiver body, but since the muff guard and the lower receiver body are made of aluminum alloy, it is easy to loosen during use if the screw connection is directly used. The connection is firm, and the steel wire thread sleeve must be installed on the muff, which will not only increase the installation thickness of the muff, but also increase the complexity and difficulty of its processing technology due to the special structural characteristics of the muff

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