Check out the latest AR15 build, I decided to try out an AR15 pistol. Keep coming back to AR15howto.com to help you build your AR15 – build at your own risk!
The Buffer Tube Castle Nut is only used on most pistol and carbine buffers. They are used to hold in place the end plate. Here is a picture of one: You can purchase a Buffer Tube Castle Nut here, or here, or here.
The Buffer Tube holds the buffer spring and buffer. Also as the rifle is cycling it will hold the bolt and carrier group. There are several different buffer tube systems, one is the AR pistol buffer tube, then there is the carbine buffer tube with mil-spec and commercial versions, and then there is the standard … [Read more…]
The Buffer Spring pushes the buffer forward and absorbs the recoil of the bolt carrier group as it is pushed back from the gas of the bullet. It then will push the buffer forward that pushes the bolt and carrier group forward, the bolt will catch another round from the magazine and load it into … [Read more…]
The Buffer Retainer Spring is used to keep the buffer retainer in place to keep the buffer and buffer spring in place. Here is a picture of one: You can purchase one as part of a Lower Parts Kit, or individually here, or here, or here Here you can see how it is installed in … [Read more…]