Description
Building a new AR-9 or AR-45? Fantastic. You'll need a buffer tube kit for that then. Instead of sourcing parts individually from separate places and worrying about parts compatibility, opt for this convenient AR-9/45 buffer tube kit from Smith Defense that has all the necessary parts you'll need to mount any mil-spec compatible stock to your AR-9 or AR-45 lower receiver.
Please note that this buffer tube kit is specifically designed for the AR-9 and AR-45 platform as the buffer weight is 7.5 ounces and made to withstand and properly cycle the blowback action.
Kit Includes:
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Mil-Spec 7075-T6 Aluminum 6-Position Carbine Receiver Extension Buffer Tube
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Buffer Assembly - 7.5oz
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Buffer Spring
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Steel Castle Nut
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Steel End Plate
