Importance

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Abstract

An automatic circulation shooting mechanism includes a gun body assembly, a gun barrel assembly, a bolt assembly, a recoil spring assembly, a triggering assembly, and a cartridge feeding assembly. Regarding the gun body assembly, a barrel fixing cap can separate from a barrel frame, so the gun barrel assembly mounted in the barrel frame can be replaced. The gun barrel assembly includes two barrel spring fixing seats disposed on a barrel, a barrel spring therebetween and a barrel extension. The barrel extension and a breech bolt of the bolt assembly are engaged for locking while shooting to allow the barrel and the breech bolt to recoil together by a linear freedom motion and affect the barrel spring, a bolt spring of the bolt assembly, and the recoil spring assembly for absorbing, storing, and releasing energy, thereby buffering recoil force of the shooting efficiently and attaining an automatic circulation shooting effect.

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First Claim