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.

Gen 3 Speedmill™

$49.99
SpeedMill Size Based On Your Router
Replacement End Mill?
SKU:
22000
Shipping:
Free Shipping
Fast Shipping:
Yes
Norton Shopping Guarantee

Rest assured, we are shipping all orders in accordance with the ATF rule and due to high demand it is taking us some time.
For concerns on how the rule affects our products view our ATF RULE FAQ page.

With a revolutionary 80% lower jig, comes a revolutionary end mill. Our all-new Speedmill for the Easy Jig® Gen 3 is the most efficient and effective milling system on the market today. Pairing our top-of-the-line end mill with our new heat-shrink tool holder, the combination virtually eliminates deflection and total runout.

It features:

  • Solid Carbide End mill
  • Optimized Fluting for Aluminum
  • Extremely Rigid Support
  • Direct-Thread to your Router
  • Longer Lasting, Averaging 5-7 Lowers per bit for Experienced Users
  • Made in the USA

We have made this a direct-thread system, to make sure you have the most solid lock-up and repeatability when it comes to milling your lower to CNC level results. Because of this feature, each router will require a different size selected when you order. 

Sizing Guides:

Quick Reference Guide - Measure Your Router

 

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Please be advised if your router needs the D/4 Speedmill, you will also need to purchase our Large Router Base.

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