My first build questions. How to assemble AR15 lower parts?
There are a few things you need to know before you install an AR-15 lower parts kit. First, be sure to read the owner’s manual that came with your rifle. There may be specific instructions on how to install the lower parts kit that is unique to your weapon. Second, always use caution and safety precautions when working with firearms.
To install an AR-15 lower parts kit, you will need a vise, punches, needle nose pliers, Allen wrenches, and a hammer. The first step is to remove the pistol grip from the rifle. To do this, use a punch to drive out the retaining pin from the grip. Next, remove the screw that holds the grip in place and pull it off.
With the pistol grip removed, you will see the hole for the buffer tube. This is where you will install the new parts kit. Take the new receiver extension and place it in the buffer tube hole. Be sure that it is lined up correctly and start to thread it in. Once it is hand-tight, use an Allen wrench to finish tightening it.
Now, take the new castle nut and place it on the receiver extension. Again, be sure that it is lined up correctly and start to thread it on. Once it is hand-tight, use an Allen wrench to finish tightening it. You may need to use a mallet or hammer to get the castle nut started, but be careful not to damage the threads.
Finally, replace the pistol grip by reversing the process that you used to remove it. Be sure that the retaining pin is in place and start to screw the grip back on. Once it is hand-tight, use an Allen wrench to finish tightening it.
You have now successfully installed an AR-15 lower parts kit. Be sure to test the weapon before using it to make sure that everything is working correctly. If you have any questions, be sure to consult the owner’s manual or a qualified gunsmith.