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  • Sig Sauer® P320 Lower Parts Kit - 9mm/.40/.357

    Sig Sauer® P320™ Lower Parts Kit - 9mm/.40/.357

    If you're building a Sig Sauer® P320 compatible sidearm, then you need a lower parts kit to complete your MUP-1. That's the part legally considered the firearm, which means it's the part upon which you change out frames, slides, etc., to convert the...

    $149.99
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We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.