BUILD AT HOME

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.

INCREDIBLY PRECISE

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.

RIDICULOUSLY EASY

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.

100% SATISFACTION GUARANTEED

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.

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SMITH DEFENSE - AR-9 /45 7.5OZ BLOWBACK BUFFER TUBE KIT

SMITH DEFENSE - AR-9 /45 7.5OZ BLOWBACK BUFFER TUBE KIT

$69.99

Quantity

SKU:: BTK-AR9/45
UPC:
Shipping:: Calculated at Checkout

Smith Defense AR-9/45 Mil-Spec Buffer Tube Kit

Building a new AR-9/45? Fantastic. You'll probably need a buffer tube kit for that then. Instead of sourcing your parts from separate places, opt for this convenient kit that has everything you'll need to complete your 80% AR-9 lower receiver or 80% AR-45 lower receiver. All the parts are mil-spec so you can build without worrying about parts compatibility. 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 or properly cycle with the blowback from when a round is fired.

Features

Mil-Spec 6 Position Buffer Tube
7.5oz AR-9 Buffer Weight
AR-9 Buffer Spring
Steel Castle Nut
Steel End Plate