There are a few different ways that you can go about building an AR-15 lower receiver. The most popular way is to purchase an 80% lower receiver and then finish it yourself. This way, you don’t need to be a licensed gunsmith to complete the build. You can also buy a finished lower receiver, or have a gunsmith complete the build for you. Whichever route you choose, make sure to read and follow all of the applicable laws and regulations in your area.
Building an AR15 lower receiver from scratch is a great way to get started in the world of gunsmithing. There are a few things you’ll need to know before getting started, but once you have the basic idea down it’s not difficult. Here’s what you’ll need to do:
1) Start by purchasing a lower receiver kit. This will include all of the little parts and pieces that you’ll need to assemble your lower receiver. You can find these kits online or at your local gun store. Just make sure that you get everything needed to complete the job – some kits may not include everything, so pay attention!
2) Once you have your kit, carefully follow the instructions that come with it. This is crucial, as any mistakes made during assembly could result in a dangerous malfunction. If you’re not confident in your ability to follow directions, it’s best to have someone who is experienced help you out.
3) Once your lower receiver is complete, you’ll need to install a trigger assembly. This can be done by following the instructions that came with your kit, or by purchasing a separate trigger assembly. Either way, make sure that everything is properly installed and tested before moving on.
4) The final step is to install a stock assembly. Again, follow the directions that came with your kit or purchase a separate stock assembly. Once everything is properly in place, you’re ready to go!
With a little time and patience, you can easily build yourself a functional AR15 lower receiver. Just make sure that you take your time, follow the instructions carefully, and test everything thoroughly before taking it out into the field.
With a little care and attention, you’ll have a great rifle that will serve you well for many years to come.
Building an AR-15 lower receiver from scratch isn’t as difficult as it might sound. With the right tools and a little patience, you can put together a high-quality lower receiver that will last for years. Here’s what you’ll need to get started:
- A drill press
- An end mill or router
- A set of Drill bits
- A set of End mill bits
- High-speed steel (HSS) tooling is recommended for aluminum, though carbide will work in a pinch
- An AR-15 lowers jig drilling template. This will be specific to the 80% lower you’re using. You can find these online or at your local gun store
- A lower receiver forging. This is the starting point for your build and can be sourced from several places, including online retailers or your local gun store
- An upper receiver assembly. This can also be sourced from several places, including online retailers or your local gun store
With those items in hand, you’re ready to start building your very own AR-15 lower receiver. Here’s a quick rundown of the steps involved:
- Begin by milling out the fire control pocket. This is where the trigger assembly will eventually go, so it’s important to get this step right.
- Next, you’ll need to drill the holes for the trigger and hammer pins. Again, take your time and make sure these holes are drilled precisely.
- Now it’s time to start milling out the magazine well. This is a fairly straightforward process, but take your time to avoid any mistakes.
- Once the magazine well is milled out, you can move on to drilling the holes for the bolt catch and release pins.
- With those holes drilled, you can now mill out the area for the pistol grip. This is a relatively simple process, but be careful not to overdo it and make the grip too thin.
- The final step is to drill the hole for the takedown pin. Once that’s done, your AR-15 lower receiver is complete!
Building your own AR-15 lower receiver can be a great way to get exactly the gun you want. With a little patience and attention to detail, you can create a high-quality receiver that will last for years.