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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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Products manufactured by 80% Arms carry a lifetime warranty against manufacturing defects. We will promptly replace or repair any product that we determine to be defective.

SMITH DEFENSE - AR-15 Mil-Spec 6 Position Carbine Buffer Tube Kit

$57.95
SKU:
BTK-AR15
UPC:
8.55877E+11
Shipping:
Calculated at Checkout
Norton Shopping Guarantee

This Mil-Spec buffer tube kit from Smith Defense contains all the necessary parts to mount your Mil-Spec dimension stock assembly to your lower receiver.

  • Receiver Extension (Buffer Tube) - Mil-Spec, 6 position (machined from 7075T6)
  • Receiver End Plate
  • Lock Nut (Castle) M4
  • Action Spring, Carbine
  • Buffer Assembly, Carbine Std

This AR-15 Carbine buffer tube kit is compatible with any stock designed to accept a mil-spec buffer tube.

 

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