Are there available rifling buttons for these platforms? I can’t find them anywhere. Even hammerbutton does not have them. Or is there some rifling button with specific characteristics that work, but they are not specifically labelled as AR15/M4?
Thank you man! But will this work for 5.56?
There’s no difference in the rifling. The differences between 5.56 NATO and .223 Remington are all in the chamber dimensions.
Thank you. Does this mean that you need a different chamber reamer for these two?
The roughing reamers can be the same but the finish reamers are different.
Once again, thank you! I do not know the difference between these two. But that website sells “chamber reamers”. So if I buy the one equivalent for this rifling button, will I be ok?
Bottleneck cartridges usually need two reamers. Unlike straight-wall pistol cartridges, rifle cartridges require opening up the chamber to a much larger diameter than the bore. A rough reamer is used to aggressively remove material to get the chamber near the correct size and then a finish reamer is used lightly cut the chamber to the final dimensions. The same rough reamer is often used for both .223 Rem and 5.56 NATO (and .223 Wylde). The finish reamer will be specific to which chamber dimensions you want. Either way you will need two reamers.
AR15 is a platform that canbe used for many calibers. .223 and 5.56 are the most common however.
How do you do rifling at home? Is it that electrolysis thing I see? Or something more forceful?
A rifling button is basically a machine tool that gets pushed through the barrel forcefully using a hydraulic press to cut the rifling into it.
On the other hand, the ECM (electrochemical machining) method is completely different and has its own benefits/drawbacks. It’s great if you don’t have access to buttons or presses, but you do have a 3D printer.
I am still new but I looked this up just recently and buttoned liners I guess is for lower caliber that mostly pistol caliber b it seems but you can get a barrel on I think it was A.R.15discount I think is the website I think I I see.556 barrel for $16 and up but imagine you would need a bigger barrel press to do those ones cause the barrel thicker showed me more pressure to cold stretch it
