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PMM Buffer Tube Adapter for Sig Hinges


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Product Details

Easily adapt your standard Sig Folding hinge to an M4 receiver extension/ buffer tube for use with a variety of stocks.


Requires a mil-spec M4 receiver extension and castle nut.


-6061 aluminum Type III anodize hardcoated in black

-Lightweight at 31 grams

-Fits Sig folding hinges

-Includes 1/4″ – 28 mounting bolt

Additional information

Weight .068343 lbs
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