The firearm spring device is for use in automatic firearms. The device has an auxiliary drive spring which assists the main drive spring in providing the required force against the bolt when in battery position, so that the preload of the main drive spring can be proportionately reduced. The auxiliary drive spring is active against the bolt only when the bolt is adjacent battery position.


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    Title :

    Firearm Drive Spring Device


    Contributors:

    Publication date :

    1965


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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