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Rock River Arms

RRA 9mm Hammer


 Product Description

This 9mm hammer is designed to be used to convert an AR15 to shoot 9mm.

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 Product Reviews

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  1. Very nice

    Posted by Joe on 24th Feb 2016

    Very good product for the price. I was planning on cutting down a mil-spec hammer but not worth doing for the price that this one costs.

  2. Good part

    Posted by Unknown on 25th Jun 2015

    This hammer works as exspected.makes my gun fire every time.

  3. It's a hammer

    Posted by Mike on 9th Nov 2014

    The hammer itself is nice and well designed. A word of advice, if you are installing it in a New Frontier Armory polymer lower, it is not compatible with their polymer lower parts kit. I would recommend installing a metal lower kit.

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