Complete Lower | How the Different Methods Affect Your Build - 80% Lowers | AR Build Kits | Upper Receivers

Complete Lower | How the Different Methods Affect Your Build

When going after your first complete lower, there may be some hiccups when it comes to how its done. Well, we at Ormond Arms are here to tell you that building an AR is not a walk in the park, but how you plan to build can greatly affect its difficulty. Here is an Official Ormond Arms tip list that will help you with your Complete lower.


When it comes to building an AR, the tools you will use will either make you or break you. For skilled DIYers, a simple hand drill along with a vice grip, and 80 lower jig kit will do the trick. However some tools require a greater level of skill than others. It is up to you to figure out what tools are the best for you, and within your budget.

A drill press and drill press vise are probably the most useful tools. In case you were wondering, here is a great list for completing an AR build, taken from our “How to Complete an AR 80% Lower Receiver” guide.

– 80% Lower Jig
– 5/32” Drill Bit
– 3/8” Drill Bit
– 5/16” Drill Bit
– 3/8” End Mill
– Dremel with 1⁄4” Grinding Head
– Drill Press Vise
– Drill Press

The 80 lower jig is the most important tool to have when building one or multiple 80 lower ARs. These will give you the proper measurements of where to make your holes, and how big they should be. No project should be done without this vital tool.


Planning is Very important. This doesn’t simply mean planning each step, it is organizing every tool, and every bit so that the complete AR is built with as low of a margin of error as possible. Lay all of your bits out that correspond with the correct parts and execute the project in phases. This is the most efficient way to make a complete AR.

Visit our website to gain access to much more helpful information about the build process and legalities of the 80 lower world. Also Visit our shop where we provide milspec 1075 forged aluminum lower receivers and jig kits to make sure our customers get the best that they deserve!

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