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80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states.
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We utilize state of the art 5-axis CNC machines to mill all our .308 and AR-15 80 percent lower receivers to incredibly precise tolerances using premium billet aluminum.
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We also offer our patented AR-15 and .308 Easy Jigs® which is the first 80% lower jig that makes it ridiculously easy for a non-machinist to finish their 80% lower in under 1 hour with no drill press required.
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SMITH DEFENSE - AR-9/45 Carbine Buffer Tube Kit

SMITH DEFENSE - AR-9/45 Carbine Buffer Tube Kit

$69.99
SKU:
BTK-AR9/45
Shipping:
Calculated at Checkout
Description

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:

  • Mil-Spec 7075-T6 Aluminum 6-Position Carbine Receiver Extension Buffer Tube  

  • Buffer Assembly - 7.5oz

  • Buffer Spring 

  • Steel Castle Nut 

  • Steel End Plate

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