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The Anatomy of an 80 Lower Jig

The Easy Jig system is one of the easiest jigs to use when milling your 80 lower. An 80 lower jig is essential for completing your lower receiver. If you are new to building, a jig basically gives you a roadmap to milling your lower receiver. A good 80 lower jig is absolutely necessary for finishing your 80 lower successfully. The better designed and easier to use, the better results you’ll have.

The Most Popular 80 Lower Jig

The fan favorite is the Easy Jig. To use an Easy jig, you simply attach it to a lower receiver via a series of bolts. The left and right sides attach to the lower receiver. Then the top block attaches to the top of the entire system. With the Easy Jig, you’ll use multiple top pieces to finish your lower receiver.

The Easy Jig is very simple to use. This will not be an in-depth examination or the official directions, but a simple explanation. For a full guide, to consult the official directions found here:… .

Your goal with the Easy jig is to mill out the fire control pocket. The fire control pocket is located behind the magazine well and in front of where you attach the buffer tube. On an 80% lower receiver, this area is completely filled in and smooth across the top. It won’t be that way for long.

80 Lower Jig - Easy JIg with Lowers

The Process at a Glance

Once the jig is attached to the lower receiver and properly in place, you’ll need to use the appropriate bit. With our Easy Jig, you’ll also get the appropriate tooling. There are three different bits, in different lengths and sizes.

You interchange the top plate as you work to accommodate the different drill bits. These bits are of various sizes in terms of width and length. These are used with different adapters, as well as depth collars.

A depth collar, or drill stop, is an essential piece of tooling with an 80 lower jig. It attaches to your bit and keeps you from drilling too deep into the lower receiver. Builders sometimes call it their oops insurance, since it keeps them from ruining their 80 lower receiver.

As you mill you’ll begin changing the templates from the pocket drilling block, to the trigger pocket template, and finally the rear shelf pocket template. These are all essential portions of the milling procedure. The last thing you’ll do is drill out a few holes in the side of the receiver for your fire control pins, and safety. The side plates are the template for these holes.

This is the last part of your milling procedure. Once that is done you are done. Now the easy part comes, assembling the rifle into the configuration of your dreams. Now that you have more info on how to use an 80 lower jig, take a look at our selection here:



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