80% Lower Jig

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Our 80% Lower Jig provides the perfect blend of simplicity and technology. Proprietary in its design, our 80% jigs makes it easier than ever to complete your 80% lower. CNC-machined from 6061 aluminum and held to .001 +/- tolerances, our 80% jig guarantees overwhelming performance and precision for the DIY builder.

An 80% jig will streamline the process of finishing your 80% lower receiver while maintaining the desired aesthetics. No matter if you’re building your very first 80% lower or are an expert, this product will provides a positive experience for every skill level. Each jig comes with step-by-step instructions and has clearly marked dimensions machined in the jig. Plus, our 80% lower jigs come with live phone support. For any reason you have questions regarding the finishing of your 80% lower, we’re only a phone call away. Made 100% in the USA. Satisfaction guaranteed. No FFL required.

From the AR Lowers Blog

Why Is It Legal To Build Your Own AR15?

If you’re new to the scene of DIY AR-15 building, you might be asking how it can be legal to build your own AR-15? The answer is relatively simple, so we’ll do our best to explain. All questions revolving around the legality of building an AR-15 begin at a federal law enforcement level. It is…
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AR Lowers: Cast Aluminum vs Billet Aluminum vs Forged Aluminum

Combining adequate density and a unique ability to resist corrosion, aluminum has become a well used alloy within a multitude of industries. Made popular by the aerospace sector, aluminum has become a vital component within most types of manufacturing. Various types of aluminum are also used in the manufacturing of AR-15 uppers and lower receivers….
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